./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V --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 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:35:34,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:35:34,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:35:35,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:35:35,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:35:35,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:35:35,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:35:35,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:35:35,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:35:35,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:35:35,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:35:35,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:35:35,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:35:35,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:35:35,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:35:35,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:35:35,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:35:35,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:35:35,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:35:35,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:35:35,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:35:35,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:35:35,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:35:35,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:35:35,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:35:35,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:35:35,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:35:35,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:35:35,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:35:35,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:35:35,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:35:35,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:35:35,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:35:35,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:35:35,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:35:35,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:35:35,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:35:35,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:35:35,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:35:35,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:35:35,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:35:35,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:35:35,175 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:35:35,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:35:35,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:35:35,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:35:35,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:35:35,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:35:35,186 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:35:35,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:35:35,187 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:35:35,187 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:35:35,188 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:35:35,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:35:35,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:35:35,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:35:35,189 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:35:35,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:35:35,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:35:35,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:35:35,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:35:35,191 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:35:35,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:35:35,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:35:35,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:35:35,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:35:35,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:35:35,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:35:35,194 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:35:35,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:35:35,195 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:35:35,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:35:35,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:35:35,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:35:35,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:35:35,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:35:35,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:35:35,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:35:35,197 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:35:35,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:35:35,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:35:35,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:35:35,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:35:35,198 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_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 [2021-11-23 02:35:35,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:35:35,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:35:35,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:35:35,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:35:35,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:35:35,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2021-11-23 02:35:35,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/6302f117f/a4daad5e0d274e0aaff85ce0a8c300df/FLAG6a84e98df [2021-11-23 02:35:36,073 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:35:36,077 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2021-11-23 02:35:36,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/6302f117f/a4daad5e0d274e0aaff85ce0a8c300df/FLAG6a84e98df [2021-11-23 02:35:36,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/6302f117f/a4daad5e0d274e0aaff85ce0a8c300df [2021-11-23 02:35:36,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:35:36,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:35:36,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:35:36,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:35:36,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:35:36,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243daa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36, skipping insertion in model container [2021-11-23 02:35:36,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:35:36,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:35:36,739 WARN L230 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_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2021-11-23 02:35:36,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:35:36,750 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:35:36,781 WARN L230 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_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2021-11-23 02:35:36,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:35:36,796 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:35:36,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36 WrapperNode [2021-11-23 02:35:36,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:35:36,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:35:36,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:35:36,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:35:36,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,873 INFO L137 Inliner]: procedures = 19, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 183 [2021-11-23 02:35:36,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:35:36,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:35:36,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:35:36,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:35:36,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:35:36,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:35:36,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:35:36,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:35:36,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (1/1) ... [2021-11-23 02:35:36,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:35:36,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:35:36,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:35:37,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:35:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:35:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:35:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:35:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 02:35:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:35:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 02:35:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:35:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:35:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 02:35:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:35:37,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:35:37,154 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:35:37,156 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:35:37,386 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:35:37,405 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:35:37,405 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 02:35:37,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:37 BoogieIcfgContainer [2021-11-23 02:35:37,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:35:37,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:35:37,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:35:37,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:35:37,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:35:36" (1/3) ... [2021-11-23 02:35:37,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e382d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:37, skipping insertion in model container [2021-11-23 02:35:37,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:36" (2/3) ... [2021-11-23 02:35:37,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e382d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:37, skipping insertion in model container [2021-11-23 02:35:37,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:37" (3/3) ... [2021-11-23 02:35:37,417 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.c [2021-11-23 02:35:37,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:35:37,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:35:37,482 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:35:37,490 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 [2021-11-23 02:35:37,491 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:35:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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) [2021-11-23 02:35:37,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 02:35:37,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:37,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:37,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:37,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:37,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1772591409, now seen corresponding path program 1 times [2021-11-23 02:35:37,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:35:37,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043204751] [2021-11-23 02:35:37,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:37,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:35:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:37,727 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:35:37,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043204751] [2021-11-23 02:35:37,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043204751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:37,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:37,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:35:37,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634160882] [2021-11-23 02:35:37,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:37,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:35:37,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:35:37,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:35:37,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:35:37,780 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-23 02:35:37,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:37,817 INFO L93 Difference]: Finished difference Result 75 states and 121 transitions. [2021-11-23 02:35:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:35:37,820 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2021-11-23 02:35:37,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:37,831 INFO L225 Difference]: With dead ends: 75 [2021-11-23 02:35:37,831 INFO L226 Difference]: Without dead ends: 36 [2021-11-23 02:35:37,835 INFO L932 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 [2021-11-23 02:35:37,840 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:37,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:35:37,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-23 02:35:37,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-23 02:35:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 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) [2021-11-23 02:35:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-11-23 02:35:37,882 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 13 [2021-11-23 02:35:37,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:37,882 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-11-23 02:35:37,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-23 02:35:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-11-23 02:35:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:35:37,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:37,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:37,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:35:37,885 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash -735811919, now seen corresponding path program 1 times [2021-11-23 02:35:37,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:35:37,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158702537] [2021-11-23 02:35:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:37,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:35:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:37,985 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:35:37,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158702537] [2021-11-23 02:35:37,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158702537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:37,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:37,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:35:37,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045884184] [2021-11-23 02:35:37,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:37,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:35:37,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:35:37,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:35:37,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:37,989 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-23 02:35:38,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:38,025 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2021-11-23 02:35:38,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:35:38,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-23 02:35:38,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:38,027 INFO L225 Difference]: With dead ends: 39 [2021-11-23 02:35:38,027 INFO L226 Difference]: Without dead ends: 36 [2021-11-23 02:35:38,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:38,029 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:38,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:35:38,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-23 02:35:38,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-23 02:35:38,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 35 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) [2021-11-23 02:35:38,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-11-23 02:35:38,038 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 16 [2021-11-23 02:35:38,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:38,039 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-11-23 02:35:38,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-23 02:35:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-11-23 02:35:38,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 02:35:38,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:38,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:38,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:35:38,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:38,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:38,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1531944987, now seen corresponding path program 1 times [2021-11-23 02:35:38,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:35:38,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969959091] [2021-11-23 02:35:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:38,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:35:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:35:38,148 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:35:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:35:38,279 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:35:38,280 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:35:38,281 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:35:38,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:35:38,287 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 02:35:38,292 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:35:38,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:35:38 BoogieIcfgContainer [2021-11-23 02:35:38,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:35:38,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:35:38,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:35:38,372 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:35:38,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:37" (3/4) ... [2021-11-23 02:35:38,376 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 02:35:38,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:35:38,378 INFO L158 Benchmark]: Toolchain (without parser) took 1909.47ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 71.1MB in the beginning and 88.1MB in the end (delta: -17.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 02:35:38,379 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:35:38,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.53ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 79.1MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:35:38,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.16ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:35:38,391 INFO L158 Benchmark]: Boogie Preprocessor took 60.44ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:35:38,392 INFO L158 Benchmark]: RCFGBuilder took 471.72ms. Allocated memory is still 104.9MB. Free memory was 75.3MB in the beginning and 59.5MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 02:35:38,393 INFO L158 Benchmark]: TraceAbstraction took 958.58ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 59.2MB in the beginning and 88.1MB in the end (delta: -28.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-11-23 02:35:38,394 INFO L158 Benchmark]: Witness Printer took 6.07ms. Allocated memory is still 136.3MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:35:38,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.53ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 79.1MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.16ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.44ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 471.72ms. Allocated memory is still 104.9MB. Free memory was 75.3MB in the beginning and 59.5MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 958.58ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 59.2MB in the beginning and 88.1MB in the end (delta: -28.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 6.07ms. Allocated memory is still 136.3MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 112]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106, overapproximation of bitwiseAnd at line 95. Possible FailurePath: [L14] static const float one_modf = 1.0; [L106] float x = -1.0f / 0.0f; [L107] float iptr = __VERIFIER_nondet_float(); [L108] CALL, EXPR modf_float(x, &iptr) [L17] __int32_t i0, j0; [L18] __uint32_t i; VAL [\old(x)=4294967299, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967299] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=4294967299, i0=-1, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967299] [L25] COND TRUE j0 < 23 VAL [\old(x)=4294967299, i0=-1, iptr={6:0}, iptr={6:0}, j0=-1, one_modf=1, x=4294967299] [L26] COND TRUE j0 < 0 VAL [\old(x)=4294967299, i0=-1, iptr={6:0}, iptr={6:0}, j0=-1, one_modf=1, x=4294967299] [L28] ieee_float_shape_type sf_u; [L29] sf_u.word = (i0 & 0x80000000) [L30] EXPR sf_u.value [L30] (*iptr) = sf_u.value [L32] return x; VAL [\old(x)=4294967299, \result=4294967299, i0=-1, iptr={6:0}, iptr={6:0}, j0=-1, one_modf=1, x=4294967299] [L108] RET, EXPR modf_float(x, &iptr) [L108] float res = modf_float(x, &iptr); [L111] EXPR \read(iptr) [L111] CALL, EXPR isinf_float(iptr) [L89] __int32_t ix; VAL [\old(x)=4294967298, one_modf=1, x=4294967298] [L91] ieee_float_shape_type gf_u; [L92] gf_u.value = (x) [L93] EXPR gf_u.word [L93] (ix) = gf_u.word [L95] ix &= 0x7fffffff [L96] return ((ix) == 0x7f800000L); [L111] RET, EXPR isinf_float(iptr) [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L111] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [\read(iptr)=4294967298, iptr={6:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967299, res == -0.0f && __signbit_float(res) == 1=0, x=4294967299] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=4294967298, iptr={6:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967299, res == -0.0f && __signbit_float(res) == 1=0, x=4294967299] [L111] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L112] reach_error() VAL [iptr={6:0}, one_modf=1, res=4294967299, x=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 75 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-11-23 02:35:38,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V --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 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:35:41,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:35:41,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:35:41,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:35:41,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:35:41,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:35:41,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:35:41,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:35:41,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:35:41,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:35:41,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:35:41,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:35:41,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:35:41,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:35:41,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:35:41,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:35:41,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:35:41,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:35:41,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:35:41,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:35:41,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:35:41,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:35:41,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:35:41,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:35:41,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:35:41,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:35:41,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:35:41,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:35:41,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:35:41,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:35:41,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:35:41,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:35:41,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:35:41,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:35:41,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:35:41,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:35:41,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:35:41,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:35:41,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:35:41,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:35:41,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:35:41,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 02:35:41,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:35:41,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:35:41,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:35:41,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:35:41,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:35:41,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:35:41,325 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:35:41,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:35:41,325 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:35:41,325 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:35:41,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:35:41,327 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:35:41,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:35:41,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:35:41,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:35:41,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:35:41,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:35:41,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:35:41,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:35:41,331 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:35:41,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 02:35:41,331 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 02:35:41,331 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:35:41,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:35:41,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:35:41,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:35:41,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:35:41,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:35:41,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:35:41,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:35:41,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:35:41,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:35:41,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:35:41,335 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 02:35:41,335 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 02:35:41,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:35:41,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:35:41,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:35:41,337 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_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 [2021-11-23 02:35:41,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:35:41,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:35:41,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:35:41,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:35:41,741 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:35:41,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2021-11-23 02:35:41,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/946534b79/1f58c8b8d94a4167a02d51f6cd3ba9d2/FLAGff99b22ee [2021-11-23 02:35:42,391 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:35:42,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2021-11-23 02:35:42,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/946534b79/1f58c8b8d94a4167a02d51f6cd3ba9d2/FLAGff99b22ee [2021-11-23 02:35:42,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/data/946534b79/1f58c8b8d94a4167a02d51f6cd3ba9d2 [2021-11-23 02:35:42,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:35:42,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:35:42,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:35:42,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:35:42,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:35:42,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:42" (1/1) ... [2021-11-23 02:35:42,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59698c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:42, skipping insertion in model container [2021-11-23 02:35:42,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:42" (1/1) ... [2021-11-23 02:35:42,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:35:42,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:35:42,999 WARN L230 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_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2021-11-23 02:35:43,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:35:43,016 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:35:43,046 WARN L230 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_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2021-11-23 02:35:43,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:35:43,064 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:35:43,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43 WrapperNode [2021-11-23 02:35:43,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:35:43,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:35:43,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:35:43,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:35:43,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,121 INFO L137 Inliner]: procedures = 22, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 182 [2021-11-23 02:35:43,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:35:43,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:35:43,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:35:43,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:35:43,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:35:43,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:35:43,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:35:43,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:35:43,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (1/1) ... [2021-11-23 02:35:43,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:35:43,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:35:43,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:35:43,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:35:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:35:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-23 02:35:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 02:35:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:35:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 02:35:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 02:35:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:35:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:35:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 02:35:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 02:35:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:35:43,404 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:35:43,406 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:35:43,788 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:35:43,794 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:35:43,809 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 02:35:43,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:43 BoogieIcfgContainer [2021-11-23 02:35:43,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:35:43,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:35:43,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:35:43,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:35:43,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:35:42" (1/3) ... [2021-11-23 02:35:43,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f93b6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:43, skipping insertion in model container [2021-11-23 02:35:43,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:43" (2/3) ... [2021-11-23 02:35:43,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f93b6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:43, skipping insertion in model container [2021-11-23 02:35:43,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:43" (3/3) ... [2021-11-23 02:35:43,820 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.c [2021-11-23 02:35:43,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:35:43,831 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:35:43,908 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:35:43,916 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 [2021-11-23 02:35:43,916 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:35:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 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) [2021-11-23 02:35:43,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:35:43,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:43,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:43,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1888439402, now seen corresponding path program 1 times [2021-11-23 02:35:43,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:43,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780232956] [2021-11-23 02:35:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:43,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:43,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:43,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:43,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 02:35:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:44,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 02:35:44,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:44,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:44,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:44,290 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:44,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780232956] [2021-11-23 02:35:44,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780232956] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:44,292 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:44,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 02:35:44,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672223452] [2021-11-23 02:35:44,295 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:44,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:35:44,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:44,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:35:44,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:35:44,331 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-11-23 02:35:44,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:44,350 INFO L93 Difference]: Finished difference Result 82 states and 128 transitions. [2021-11-23 02:35:44,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:35:44,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2021-11-23 02:35:44,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:44,361 INFO L225 Difference]: With dead ends: 82 [2021-11-23 02:35:44,362 INFO L226 Difference]: Without dead ends: 39 [2021-11-23 02:35:44,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:35:44,368 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:44,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:35:44,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-23 02:35:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-23 02:35:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.131578947368421) internal successors, (43), 38 states have internal predecessors, (43), 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) [2021-11-23 02:35:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-11-23 02:35:44,407 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2021-11-23 02:35:44,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:44,408 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-11-23 02:35:44,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-11-23 02:35:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2021-11-23 02:35:44,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 02:35:44,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:44,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:44,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 02:35:44,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:44,620 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:44,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1291452088, now seen corresponding path program 1 times [2021-11-23 02:35:44,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:44,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729980457] [2021-11-23 02:35:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:44,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:44,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:44,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:44,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 02:35:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:44,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:35:44,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:45,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:45,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:45,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729980457] [2021-11-23 02:35:45,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729980457] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:45,327 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:45,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 02:35:45,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348186069] [2021-11-23 02:35:45,329 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:45,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:35:45,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:45,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:35:45,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:35:45,332 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2021-11-23 02:35:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:45,366 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2021-11-23 02:35:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:35:45,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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) Word has length 18 [2021-11-23 02:35:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:45,374 INFO L225 Difference]: With dead ends: 54 [2021-11-23 02:35:45,374 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 02:35:45,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:35:45,376 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:45,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-23 02:35:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 02:35:45,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 02:35:45,381 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) [2021-11-23 02:35:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-11-23 02:35:45,382 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2021-11-23 02:35:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:45,382 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-11-23 02:35:45,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2021-11-23 02:35:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-23 02:35:45,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:35:45,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:45,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:45,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:45,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:45,597 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:45,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:45,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1647807069, now seen corresponding path program 1 times [2021-11-23 02:35:45,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:45,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368552853] [2021-11-23 02:35:45,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:45,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:45,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:45,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:45,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 02:35:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:45,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:35:45,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:45,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:45,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:45,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:45,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368552853] [2021-11-23 02:35:45,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368552853] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:45,823 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:45,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-23 02:35:45,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854004162] [2021-11-23 02:35:45,828 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:45,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:35:45,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:45,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:35:45,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:45,832 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-11-23 02:35:45,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:45,860 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-11-23 02:35:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:35:45,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 19 [2021-11-23 02:35:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:45,864 INFO L225 Difference]: With dead ends: 29 [2021-11-23 02:35:45,864 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 02:35:45,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:45,865 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:45,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:35:45,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 02:35:45,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 02:35:45,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2021-11-23 02:35:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-11-23 02:35:45,871 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 19 [2021-11-23 02:35:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:45,871 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-11-23 02:35:45,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-11-23 02:35:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-11-23 02:35:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 02:35:45,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:45,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:45,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:46,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:46,102 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:46,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1322743609, now seen corresponding path program 1 times [2021-11-23 02:35:46,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:46,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119152149] [2021-11-23 02:35:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:46,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:46,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:46,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:46,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 02:35:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:46,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:35:46,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:46,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:46,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:46,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119152149] [2021-11-23 02:35:46,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119152149] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:46,606 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:46,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-23 02:35:46,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826850096] [2021-11-23 02:35:46,606 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:46,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:35:46,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:46,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:35:46,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:35:46,608 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 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) [2021-11-23 02:35:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:46,724 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-11-23 02:35:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:35:46,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 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 21 [2021-11-23 02:35:46,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:46,726 INFO L225 Difference]: With dead ends: 30 [2021-11-23 02:35:46,726 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 02:35:46,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:35:46,727 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:46,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 78 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-11-23 02:35:46,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 02:35:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 02:35:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 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) [2021-11-23 02:35:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2021-11-23 02:35:46,733 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 21 [2021-11-23 02:35:46,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:46,733 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2021-11-23 02:35:46,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 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) [2021-11-23 02:35:46,734 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2021-11-23 02:35:46,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:35:46,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:46,735 INFO L514 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, 1] [2021-11-23 02:35:46,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:46,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:46,959 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:46,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:46,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1202751826, now seen corresponding path program 1 times [2021-11-23 02:35:46,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:46,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113709560] [2021-11-23 02:35:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:46,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:46,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:46,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:46,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 02:35:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:47,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 02:35:47,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:47,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-23 02:35:47,353 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 55 treesize of output 31 [2021-11-23 02:35:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:50,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:35:51,744 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113709560] [2021-11-23 02:35:51,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113709560] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:51,745 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:51,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 19 [2021-11-23 02:35:51,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240605044] [2021-11-23 02:35:51,746 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:51,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-23 02:35:51,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:51,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-23 02:35:51,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=297, Unknown=1, NotChecked=0, Total=342 [2021-11-23 02:35:51,749 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 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) [2021-11-23 02:35:51,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:51,889 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2021-11-23 02:35:51,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:35:51,889 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 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 25 [2021-11-23 02:35:51,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:51,889 INFO L225 Difference]: With dead ends: 26 [2021-11-23 02:35:51,890 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:35:51,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=49, Invalid=330, Unknown=1, NotChecked=0, Total=380 [2021-11-23 02:35:51,891 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:51,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2021-11-23 02:35:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:35:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:35:51,893 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) [2021-11-23 02:35:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:35:51,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-11-23 02:35:51,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:51,894 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:35:51,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 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) [2021-11-23 02:35:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:35:51,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:35:51,897 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:35:51,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:52,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:52,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:35:52,280 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 27 31) no Hoare annotation was computed. [2021-11-23 02:35:52,281 INFO L854 garLoopResultBuilder]: At program point L27-2(lines 27 31) the Hoare annotation is: false [2021-11-23 02:35:52,281 INFO L858 garLoopResultBuilder]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2021-11-23 02:35:52,281 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-23 02:35:52,281 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_modf_float_~x#1|)) [2021-11-23 02:35:52,281 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-11-23 02:35:52,281 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 02:35:52,282 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 02:35:52,282 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2021-11-23 02:35:52,282 INFO L854 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_modf_float_~x#1|)) [2021-11-23 02:35:52,282 INFO L858 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-11-23 02:35:52,282 INFO L858 garLoopResultBuilder]: For program point L111-1(line 111) no Hoare annotation was computed. [2021-11-23 02:35:52,282 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-23 02:35:52,282 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19#1| (exists ((v_arrayElimCell_1 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= |ULTIMATE.start___signbit_float_~x#1| (let ((.cse0 (bvand (_ bv2147483648 32) v_arrayElimCell_1))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))))) [2021-11-23 02:35:52,282 INFO L858 garLoopResultBuilder]: For program point L111-3(line 111) no Hoare annotation was computed. [2021-11-23 02:35:52,282 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2021-11-23 02:35:52,283 INFO L858 garLoopResultBuilder]: For program point L111-5(lines 111 114) no Hoare annotation was computed. [2021-11-23 02:35:52,283 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-11-23 02:35:52,283 INFO L854 garLoopResultBuilder]: At program point L71(lines 16 73) the Hoare annotation is: (and (exists ((v_arrayElimCell_1 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start_modf_float_#res#1| (let ((.cse0 (bvand (_ bv2147483648 32) v_arrayElimCell_1))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (fp.eq |ULTIMATE.start_modf_float_~x#1| (fp.neg (_ +zero 8 24)))) [2021-11-23 02:35:52,283 INFO L858 garLoopResultBuilder]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2021-11-23 02:35:52,283 INFO L854 garLoopResultBuilder]: At program point L38-2(lines 38 42) the Hoare annotation is: false [2021-11-23 02:35:52,283 INFO L854 garLoopResultBuilder]: At program point L96(lines 88 97) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (fp.eq |ULTIMATE.start_modf_float_#res#1| .cse0) (fp.eq |ULTIMATE.start_modf_float_~x#1| .cse0) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= |ULTIMATE.start_main_~res~0#1| (let ((.cse1 (bvand (_ bv2147483648 32) v_arrayElimCell_1))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (= (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))))) [2021-11-23 02:35:52,283 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 02:35:52,284 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-23 02:35:52,284 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (fp.eq |ULTIMATE.start_modf_float_#res#1| .cse0) (fp.eq |ULTIMATE.start_modf_float_~x#1| .cse0) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= |ULTIMATE.start_main_~res~0#1| (let ((.cse1 (bvand (_ bv2147483648 32) v_arrayElimCell_1))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (= (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))))) [2021-11-23 02:35:52,284 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-11-23 02:35:52,284 INFO L858 garLoopResultBuilder]: For program point L90-3(lines 90 94) no Hoare annotation was computed. [2021-11-23 02:35:52,284 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-23 02:35:52,284 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 58 72) no Hoare annotation was computed. [2021-11-23 02:35:52,284 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:35:52,284 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2021-11-23 02:35:52,285 INFO L858 garLoopResultBuilder]: For program point L25(lines 25 72) no Hoare annotation was computed. [2021-11-23 02:35:52,285 INFO L861 garLoopResultBuilder]: At program point L116(lines 99 117) the Hoare annotation is: true [2021-11-23 02:35:52,285 INFO L858 garLoopResultBuilder]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2021-11-23 02:35:52,285 INFO L854 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2021-11-23 02:35:52,285 INFO L858 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2021-11-23 02:35:52,285 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 57) no Hoare annotation was computed. [2021-11-23 02:35:52,285 INFO L854 garLoopResultBuilder]: At program point L84(lines 75 85) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19#1| (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32))) [2021-11-23 02:35:52,285 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2021-11-23 02:35:52,285 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 35 49) no Hoare annotation was computed. [2021-11-23 02:35:52,286 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 47) no Hoare annotation was computed. [2021-11-23 02:35:52,286 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 56) no Hoare annotation was computed. [2021-11-23 02:35:52,289 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-23 02:35:52,296 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:35:52,309 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,316 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,316 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,316 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,316 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,329 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,329 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,330 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,330 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,330 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,330 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,330 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,331 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,332 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,333 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,333 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,333 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,333 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,333 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,334 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,334 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,334 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,335 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,335 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,335 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,335 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,335 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,335 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,336 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,351 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,352 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,352 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:35:52 BoogieIcfgContainer [2021-11-23 02:35:52,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:35:52,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:35:52,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:35:52,356 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:35:52,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:43" (3/4) ... [2021-11-23 02:35:52,360 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:35:52,375 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-11-23 02:35:52,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 02:35:52,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:35:52,381 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:35:52,407 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) [2021-11-23 02:35:52,407 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) [2021-11-23 02:35:52,408 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && \result == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0])) && ~fp.eq~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) [2021-11-23 02:35:52,409 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~FLOAT(\result, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.eq~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: res == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-11-23 02:35:52,409 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~FLOAT(\result, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.eq~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: res == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-11-23 02:35:52,410 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: x == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-11-23 02:35:52,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32 [2021-11-23 02:35:52,445 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:35:52,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:35:52,447 INFO L158 Benchmark]: Toolchain (without parser) took 9687.95ms. Allocated memory was 52.4MB in the beginning and 79.7MB in the end (delta: 27.3MB). Free memory was 29.0MB in the beginning and 57.4MB in the end (delta: -28.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2021-11-23 02:35:52,447 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory was 33.7MB in the beginning and 33.7MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:35:52,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.47ms. Allocated memory is still 52.4MB. Free memory was 28.8MB in the beginning and 30.4MB in the end (delta: -1.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-11-23 02:35:52,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.22ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 28.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:35:52,448 INFO L158 Benchmark]: Boogie Preprocessor took 82.61ms. Allocated memory is still 52.4MB. Free memory was 28.3MB in the beginning and 26.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:35:52,449 INFO L158 Benchmark]: RCFGBuilder took 605.90ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 26.3MB in the beginning and 34.6MB in the end (delta: -8.2MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-11-23 02:35:52,450 INFO L158 Benchmark]: TraceAbstraction took 8541.60ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 34.1MB in the beginning and 30.0MB in the end (delta: 4.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-11-23 02:35:52,450 INFO L158 Benchmark]: Witness Printer took 90.29ms. Allocated memory is still 79.7MB. Free memory was 30.0MB in the beginning and 57.4MB in the end (delta: -27.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:35:52,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory was 33.7MB in the beginning and 33.7MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.47ms. Allocated memory is still 52.4MB. Free memory was 28.8MB in the beginning and 30.4MB in the end (delta: -1.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.22ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 28.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.61ms. Allocated memory is still 52.4MB. Free memory was 28.3MB in the beginning and 26.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.90ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 26.3MB in the beginning and 34.6MB in the end (delta: -8.2MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8541.60ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 34.1MB in the beginning and 30.0MB in the end (delta: 4.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 90.29ms. Allocated memory is still 79.7MB. Free memory was 30.0MB in the beginning and 57.4MB in the end (delta: -27.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 112]: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 430 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 38 IncrementalHoareTripleChecker+Unchecked, 301 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 129 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 154 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 182 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 186 ConstructedInterpolants, 50 QuantifiedInterpolants, 1324 SizeOfPredicates, 31 NumberOfNonLiveVariables, 389 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 75]: Loop Invariant Derived loop invariant: aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32 - InvariantResult [Line: 19]: Loop Invariant [2021-11-23 02:35:52,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 88]: Loop Invariant [2021-11-23 02:35:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,492 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,492 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,492 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,492 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,493 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,493 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,493 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,493 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,493 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~fp.eq~FLOAT(\result, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.eq~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: res == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant [2021-11-23 02:35:52,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: x == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2021-11-23 02:35:52,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,504 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,504 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,504 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,504 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,504 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] Derived loop invariant: (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && \result == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0])) && ~fp.eq~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 90]: Loop Invariant [2021-11-23 02:35:52,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,509 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,509 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:35:52,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~fp.eq~FLOAT(\result, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.eq~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && (\exists v_arrayElimCell_1 : bv32, currentRoundingMode : FloatRoundingMode :: res == ~fp~LONGDOUBLE(~bvand32(2147483648bv32, v_arrayElimCell_1)[31:31], ~bvand32(2147483648bv32, v_arrayElimCell_1)[30:23], ~bvand32(2147483648bv32, v_arrayElimCell_1)[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant [2021-11-23 02:35:52,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:35:52,513 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:35:52,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb4a97-05a4-4ea1-8ac3-2c0a84998ce7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE