./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8 --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 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:00:00,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:00:00,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:00:00,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:00:00,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:00:00,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:00:00,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:00:00,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:00:00,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:00:00,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:00:00,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:00:00,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:00:00,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:00:00,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:00:00,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:00:00,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:00:00,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:00:00,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:00:00,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:00:00,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:00:00,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:00:00,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:00:01,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:00:01,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:00:01,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:00:01,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:00:01,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:00:01,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:00:01,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:00:01,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:00:01,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:00:01,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:00:01,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:00:01,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:00:01,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:00:01,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:00:01,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:00:01,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:00:01,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:00:01,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:00:01,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:00:01,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:00:01,070 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:00:01,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:00:01,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:00:01,072 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:00:01,073 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:00:01,073 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:00:01,073 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:00:01,073 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:00:01,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:00:01,074 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:00:01,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:00:01,075 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:00:01,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:00:01,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:00:01,076 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:00:01,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:00:01,077 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:00:01,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:00:01,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:00:01,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:00:01,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:00:01,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:00:01,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:00:01,078 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:00:01,078 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:00:01,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:00:01,079 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:00:01,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:00:01,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:00:01,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:00:01,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:00:01,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:00:01,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:00:01,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:00:01,082 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:00:01,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:00:01,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:00:01,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:00:01,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:00:01,083 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_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 [2021-11-07 01:00:01,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:00:01,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:00:01,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:00:01,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:00:01,447 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:00:01,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-07 01:00:01,522 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/ce3f2a2d5/73291b4a6d0746c8b3ff2265ea75ab41/FLAG28989c7cd [2021-11-07 01:00:01,991 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:00:01,992 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-07 01:00:02,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/ce3f2a2d5/73291b4a6d0746c8b3ff2265ea75ab41/FLAG28989c7cd [2021-11-07 01:00:02,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/ce3f2a2d5/73291b4a6d0746c8b3ff2265ea75ab41 [2021-11-07 01:00:02,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:00:02,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:00:02,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:00:02,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:00:02,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:00:02,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3406186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02, skipping insertion in model container [2021-11-07 01:00:02,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:00:02,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:00:02,758 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-07 01:00:02,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:00:02,770 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:00:02,813 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-07 01:00:02,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:00:02,829 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:00:02,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02 WrapperNode [2021-11-07 01:00:02,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:00:02,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:00:02,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:00:02,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:00:02,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:00:02,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:00:02,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:00:02,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:00:02,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:00:02,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:00:02,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:00:02,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:00:02,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (1/1) ... [2021-11-07 01:00:02,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:00:02,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:00:03,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:00:03,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:00:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:00:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:00:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 01:00:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:00:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-07 01:00:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:00:03,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:00:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:00:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:00:03,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:00:03,678 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-07 01:00:03,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:03 BoogieIcfgContainer [2021-11-07 01:00:03,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:00:03,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:00:03,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:00:03,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:00:03,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:00:02" (1/3) ... [2021-11-07 01:00:03,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab765fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:03, skipping insertion in model container [2021-11-07 01:00:03,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:02" (2/3) ... [2021-11-07 01:00:03,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab765fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:03, skipping insertion in model container [2021-11-07 01:00:03,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:03" (3/3) ... [2021-11-07 01:00:03,691 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-11-07 01:00:03,696 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:00:03,696 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:00:03,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:00:03,761 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 [2021-11-07 01:00:03,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:00:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 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) [2021-11-07 01:00:03,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:00:03,800 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:03,801 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:03,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:03,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1760934509, now seen corresponding path program 1 times [2021-11-07 01:00:03,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:00:03,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758395804] [2021-11-07 01:00:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:03,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:00:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:03,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:03,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:00:03,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758395804] [2021-11-07 01:00:03,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758395804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:03,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:03,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:00:03,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030961400] [2021-11-07 01:00:03,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:00:03,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:00:04,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:00:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:00:04,014 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-07 01:00:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:04,033 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2021-11-07 01:00:04,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:00:04,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-07 01:00:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:04,044 INFO L225 Difference]: With dead ends: 91 [2021-11-07 01:00:04,044 INFO L226 Difference]: Without dead ends: 44 [2021-11-07 01:00:04,047 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:00:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-07 01:00:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-07 01:00:04,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 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) [2021-11-07 01:00:04,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-11-07 01:00:04,081 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2021-11-07 01:00:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:04,081 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-11-07 01:00:04,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-07 01:00:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-11-07 01:00:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:00:04,083 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:04,083 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:04,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:00:04,083 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:04,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:04,084 INFO L85 PathProgramCache]: Analyzing trace with hash -971347180, now seen corresponding path program 1 times [2021-11-07 01:00:04,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:00:04,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388579186] [2021-11-07 01:00:04,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:04,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:00:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:00:04,126 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:00:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:00:04,177 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:00:04,178 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:00:04,179 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:00:04,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:00:04,185 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 01:00:04,188 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:00:04,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:00:04 BoogieIcfgContainer [2021-11-07 01:00:04,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:00:04,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:00:04,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:00:04,219 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:00:04,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:03" (3/4) ... [2021-11-07 01:00:04,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:00:04,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:00:04,225 INFO L168 Benchmark]: Toolchain (without parser) took 1731.90 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 66.2 MB in the beginning and 88.5 MB in the end (delta: -22.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:04,225 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory was 83.1 MB in the beginning and 83.0 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:00:04,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.06 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 75.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:04,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.72 ms. Allocated memory is still 104.9 MB. Free memory was 75.6 MB in the beginning and 73.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:04,228 INFO L168 Benchmark]: Boogie Preprocessor took 66.69 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 71.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:04,228 INFO L168 Benchmark]: RCFGBuilder took 717.29 ms. Allocated memory is still 104.9 MB. Free memory was 71.1 MB in the beginning and 47.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:04,229 INFO L168 Benchmark]: TraceAbstraction took 534.53 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 89.5 MB in the end (delta: -42.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:00:04,230 INFO L168 Benchmark]: Witness Printer took 4.49 ms. Allocated memory is still 132.1 MB. Free memory was 89.5 MB in the beginning and 88.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:00:04,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory was 83.1 MB in the beginning and 83.0 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.06 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 75.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.72 ms. Allocated memory is still 104.9 MB. Free memory was 75.6 MB in the beginning and 73.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.69 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 71.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 717.29 ms. Allocated memory is still 104.9 MB. Free memory was 71.1 MB in the beginning and 47.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 534.53 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 89.5 MB in the end (delta: -42.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.49 ms. Allocated memory is still 132.1 MB. Free memory was 89.5 MB in the beginning and 88.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 200]: 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = -0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 01:00:04,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/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 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_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8 --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 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:00:06,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:00:06,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:00:06,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:00:06,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:00:06,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:00:06,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:00:06,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:00:06,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:00:06,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:00:06,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:00:06,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:00:06,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:00:06,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:00:06,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:00:06,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:00:06,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:00:06,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:00:06,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:00:06,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:00:06,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:00:06,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:00:06,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:00:06,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:00:06,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:00:06,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:00:06,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:00:06,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:00:06,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:00:06,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:00:06,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:00:06,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:00:06,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:00:06,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:00:06,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:00:06,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:00:06,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:00:06,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:00:06,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:00:06,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:00:06,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:00:06,754 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:00:06,796 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:00:06,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:00:06,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:00:06,798 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:00:06,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:00:06,798 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:00:06,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:00:06,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:00:06,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:00:06,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:00:06,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:00:06,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:00:06,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:00:06,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:00:06,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:00:06,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:00:06,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:00:06,802 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:00:06,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:00:06,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:00:06,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:00:06,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:00:06,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:00:06,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:00:06,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:00:06,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:00:06,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:00:06,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:00:06,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:00:06,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:00:06,805 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:00:06,805 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:00:06,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:00:06,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:00:06,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:00:06,806 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_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 [2021-11-07 01:00:07,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:00:07,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:00:07,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:00:07,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:00:07,191 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:00:07,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-07 01:00:07,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/b68191e2a/26ee8546799f462d8bacb24929022820/FLAG87cb2ec6b [2021-11-07 01:00:07,710 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:00:07,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-07 01:00:07,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/b68191e2a/26ee8546799f462d8bacb24929022820/FLAG87cb2ec6b [2021-11-07 01:00:08,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/data/b68191e2a/26ee8546799f462d8bacb24929022820 [2021-11-07 01:00:08,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:00:08,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:00:08,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:00:08,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:00:08,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:00:08,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a5f8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08, skipping insertion in model container [2021-11-07 01:00:08,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:00:08,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:00:08,318 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-07 01:00:08,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:00:08,334 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:00:08,451 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-07 01:00:08,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:00:08,469 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:00:08,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08 WrapperNode [2021-11-07 01:00:08,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:00:08,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:00:08,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:00:08,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:00:08,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:00:08,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:00:08,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:00:08,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:00:08,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:00:08,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:00:08,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:00:08,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:00:08,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2021-11-07 01:00:08,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:00:08,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:00:08,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:00:08,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:00:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-07 01:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:00:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-07 01:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:00:18,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:00:18,895 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-07 01:00:18,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:18 BoogieIcfgContainer [2021-11-07 01:00:18,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:00:18,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:00:18,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:00:18,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:00:18,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:00:08" (1/3) ... [2021-11-07 01:00:18,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439315c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:18, skipping insertion in model container [2021-11-07 01:00:18,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (2/3) ... [2021-11-07 01:00:18,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439315c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:18, skipping insertion in model container [2021-11-07 01:00:18,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:18" (3/3) ... [2021-11-07 01:00:18,906 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-11-07 01:00:18,912 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:00:18,912 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:00:18,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:00:18,968 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 [2021-11-07 01:00:18,969 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:00:18,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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) [2021-11-07 01:00:18,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:00:18,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:18,990 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:18,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:18,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:18,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2021-11-07 01:00:19,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:19,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127646163] [2021-11-07 01:00:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:19,010 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:19,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:19,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:19,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:00:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:19,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:00:19,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:19,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:19,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:19,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127646163] [2021-11-07 01:00:19,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127646163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:19,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:19,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:00:19,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035671981] [2021-11-07 01:00:19,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:00:19,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:19,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:00:19,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:00:19,919 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-07 01:00:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:19,940 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2021-11-07 01:00:19,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:00:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-07 01:00:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:19,951 INFO L225 Difference]: With dead ends: 118 [2021-11-07 01:00:19,951 INFO L226 Difference]: Without dead ends: 57 [2021-11-07 01:00:19,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:00:19,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-07 01:00:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-07 01:00:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 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) [2021-11-07 01:00:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2021-11-07 01:00:19,989 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2021-11-07 01:00:19,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:19,990 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2021-11-07 01:00:19,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-07 01:00:19,990 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2021-11-07 01:00:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:00:19,991 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:19,991 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:20,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:20,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:20,214 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:20,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:20,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2021-11-07 01:00:20,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:20,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614125067] [2021-11-07 01:00:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:20,216 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:20,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:20,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:20,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:00:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:20,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:00:20,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:21,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:21,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:21,657 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:21,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614125067] [2021-11-07 01:00:21,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614125067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:21,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:21,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:00:21,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303297278] [2021-11-07 01:00:21,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:00:21,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:21,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:00:21,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:00:21,661 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-11-07 01:00:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:23,041 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2021-11-07 01:00:23,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:00:23,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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 10 [2021-11-07 01:00:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:23,045 INFO L225 Difference]: With dead ends: 104 [2021-11-07 01:00:23,045 INFO L226 Difference]: Without dead ends: 57 [2021-11-07 01:00:23,046 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:00:23,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-07 01:00:23,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-07 01:00:23,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 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) [2021-11-07 01:00:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2021-11-07 01:00:23,064 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2021-11-07 01:00:23,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:23,065 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2021-11-07 01:00:23,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-11-07 01:00:23,065 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2021-11-07 01:00:23,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:00:23,068 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:23,069 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:23,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:23,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:23,269 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:23,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:23,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2021-11-07 01:00:23,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:23,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202230497] [2021-11-07 01:00:23,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:23,271 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:23,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:23,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:00:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:23,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:00:23,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:24,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:24,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:24,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202230497] [2021-11-07 01:00:24,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202230497] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:24,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:24,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:00:24,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261730294] [2021-11-07 01:00:24,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:00:24,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:24,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:00:24,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:00:24,506 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-11-07 01:00:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:25,006 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2021-11-07 01:00:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:00:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 01:00:25,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:25,008 INFO L225 Difference]: With dead ends: 69 [2021-11-07 01:00:25,009 INFO L226 Difference]: Without dead ends: 66 [2021-11-07 01:00:25,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:00:25,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-07 01:00:25,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-11-07 01:00:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 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) [2021-11-07 01:00:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2021-11-07 01:00:25,021 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2021-11-07 01:00:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:25,022 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2021-11-07 01:00:25,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-11-07 01:00:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2021-11-07 01:00:25,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:00:25,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:25,023 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:25,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:00:25,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:25,236 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:25,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:25,237 INFO L85 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2021-11-07 01:00:25,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:25,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481478237] [2021-11-07 01:00:25,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:25,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:25,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:25,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:25,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:00:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:25,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 01:00:25,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:26,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:27,902 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:27,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481478237] [2021-11-07 01:00:27,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481478237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:27,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:27,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-11-07 01:00:27,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915785329] [2021-11-07 01:00:27,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:00:27,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:27,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:00:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:00:27,905 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2021-11-07 01:00:29,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:29,291 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2021-11-07 01:00:29,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:00:29,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 [2021-11-07 01:00:29,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:29,293 INFO L225 Difference]: With dead ends: 66 [2021-11-07 01:00:29,293 INFO L226 Difference]: Without dead ends: 57 [2021-11-07 01:00:29,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:00:29,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-07 01:00:29,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-07 01:00:29,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 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) [2021-11-07 01:00:29,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-11-07 01:00:29,303 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2021-11-07 01:00:29,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:29,304 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-11-07 01:00:29,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2021-11-07 01:00:29,305 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2021-11-07 01:00:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:00:29,306 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:29,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:29,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:29,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:29,529 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2021-11-07 01:00:29,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:29,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594433531] [2021-11-07 01:00:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:29,530 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:29,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:29,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:29,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:00:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:31,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:00:31,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:32,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:34,734 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:34,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594433531] [2021-11-07 01:00:34,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594433531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:34,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:34,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:00:34,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463971757] [2021-11-07 01:00:34,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:00:34,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:34,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:00:34,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:00:34,738 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 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) [2021-11-07 01:00:34,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:34,895 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2021-11-07 01:00:34,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:34,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 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) Word has length 33 [2021-11-07 01:00:34,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:34,897 INFO L225 Difference]: With dead ends: 57 [2021-11-07 01:00:34,897 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:00:34,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:00:34,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:00:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:00:34,898 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) [2021-11-07 01:00:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:00:34,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-11-07 01:00:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:34,899 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:00:34,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 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) [2021-11-07 01:00:34,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:00:34,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:00:34,902 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:00:34,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:35,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:35,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:00:35,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:35,779 INFO L853 garLoopResultBuilder]: At program point L184(lines 119 185) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2021-11-07 01:00:35,780 INFO L857 garLoopResultBuilder]: For program point L135(lines 135 136) no Hoare annotation was computed. [2021-11-07 01:00:35,780 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:00:35,780 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-07 01:00:35,780 INFO L853 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2021-11-07 01:00:35,780 INFO L857 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-07 01:00:35,780 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 174) no Hoare annotation was computed. [2021-11-07 01:00:35,780 INFO L857 garLoopResultBuilder]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2021-11-07 01:00:35,781 INFO L857 garLoopResultBuilder]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2021-11-07 01:00:35,781 INFO L860 garLoopResultBuilder]: At program point L204(lines 187 205) the Hoare annotation is: true [2021-11-07 01:00:35,781 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2021-11-07 01:00:35,781 INFO L853 garLoopResultBuilder]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start___ieee754_asinf_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-07 01:00:35,781 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-11-07 01:00:35,781 INFO L857 garLoopResultBuilder]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2021-11-07 01:00:35,782 INFO L853 garLoopResultBuilder]: At program point L23(lines 14 24) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= |ULTIMATE.start___signbit_float_#res| (_ bv1 32)) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-11-07 01:00:35,782 INFO L857 garLoopResultBuilder]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2021-11-07 01:00:35,782 INFO L853 garLoopResultBuilder]: At program point L106(lines 94 107) the Hoare annotation is: false [2021-11-07 01:00:35,782 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-07 01:00:35,782 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:00:35,782 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 84) no Hoare annotation was computed. [2021-11-07 01:00:35,782 INFO L853 garLoopResultBuilder]: At program point L92(lines 28 93) the Hoare annotation is: false [2021-11-07 01:00:35,782 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-11-07 01:00:35,783 INFO L857 garLoopResultBuilder]: For program point L159(lines 159 180) no Hoare annotation was computed. [2021-11-07 01:00:35,783 INFO L857 garLoopResultBuilder]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2021-11-07 01:00:35,783 INFO L857 garLoopResultBuilder]: For program point L77(lines 77 83) no Hoare annotation was computed. [2021-11-07 01:00:35,783 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 01:00:35,783 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-11-07 01:00:35,783 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 148) no Hoare annotation was computed. [2021-11-07 01:00:35,783 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2021-11-07 01:00:35,784 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2021-11-07 01:00:35,784 INFO L853 garLoopResultBuilder]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2021-11-07 01:00:35,784 INFO L853 garLoopResultBuilder]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2021-11-07 01:00:35,784 INFO L857 garLoopResultBuilder]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2021-11-07 01:00:35,784 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 148) no Hoare annotation was computed. [2021-11-07 01:00:35,784 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 01:00:35,784 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-11-07 01:00:35,784 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-11-07 01:00:35,785 INFO L857 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-11-07 01:00:35,785 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2021-11-07 01:00:35,785 INFO L853 garLoopResultBuilder]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2021-11-07 01:00:35,785 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-07 01:00:35,785 INFO L857 garLoopResultBuilder]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2021-11-07 01:00:35,785 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2021-11-07 01:00:35,785 INFO L853 garLoopResultBuilder]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2021-11-07 01:00:35,785 INFO L857 garLoopResultBuilder]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2021-11-07 01:00:35,786 INFO L857 garLoopResultBuilder]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2021-11-07 01:00:35,786 INFO L857 garLoopResultBuilder]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2021-11-07 01:00:35,786 INFO L853 garLoopResultBuilder]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2021-11-07 01:00:35,786 INFO L853 garLoopResultBuilder]: At program point L17-2(lines 17 21) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-11-07 01:00:35,786 INFO L857 garLoopResultBuilder]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2021-11-07 01:00:35,786 INFO L857 garLoopResultBuilder]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2021-11-07 01:00:35,786 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-07 01:00:35,786 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 148) no Hoare annotation was computed. [2021-11-07 01:00:35,787 INFO L857 garLoopResultBuilder]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2021-11-07 01:00:35,787 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2021-11-07 01:00:35,787 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-07 01:00:35,787 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 147) no Hoare annotation was computed. [2021-11-07 01:00:35,787 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-11-07 01:00:35,787 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2021-11-07 01:00:35,787 INFO L857 garLoopResultBuilder]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2021-11-07 01:00:35,792 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-07 01:00:35,793 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:00:35,802 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 01:00:35,806 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 01:00:35,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,810 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:00:35 BoogieIcfgContainer [2021-11-07 01:00:35,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:00:35,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:00:35,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:00:35,817 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:00:35,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:18" (3/4) ... [2021-11-07 01:00:35,820 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:00:35,833 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-07 01:00:35,833 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 01:00:35,833 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:00:35,834 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:00:35,858 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1)) [2021-11-07 01:00:35,859 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2021-11-07 01:00:35,859 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2021-11-07 01:00:35,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:00:35,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:00:35,891 INFO L168 Benchmark]: Toolchain (without parser) took 27804.67 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.2 MB in the beginning and 29.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:35,892 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.0 MB in the beginning and 35.9 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:00:35,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.45 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 48.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:35,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 45.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:35,893 INFO L168 Benchmark]: Boogie Preprocessor took 69.74 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 43.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:35,893 INFO L168 Benchmark]: RCFGBuilder took 10300.10 ms. Allocated memory is still 67.1 MB. Free memory was 43.1 MB in the beginning and 40.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:35,894 INFO L168 Benchmark]: TraceAbstraction took 16916.62 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 35.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:35,894 INFO L168 Benchmark]: Witness Printer took 73.32 ms. Allocated memory is still 67.1 MB. Free memory was 35.4 MB in the beginning and 29.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:35,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.0 MB in the beginning and 35.9 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 382.45 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 48.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 45.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.74 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 43.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10300.10 ms. Allocated memory is still 67.1 MB. Free memory was 43.1 MB in the beginning and 40.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16916.62 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 35.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 73.32 ms. Allocated memory is still 67.1 MB. Free memory was 35.4 MB in the beginning and 29.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,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: 200]: 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, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 512 SDslu, 799 SDs, 0 SdLazy, 127 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 170 HoareAnnotationTreeSize, 13 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 13 QuantifiedInterpolants, 762 SizeOfPredicates, 28 NumberOfNonLiveVariables, 377 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: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2021-11-07 01:00:35,907 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-07 01:00:35,907 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2021-11-07 01:00:35,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant [2021-11-07 01:00:35,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 119]: Loop Invariant [2021-11-07 01:00:35,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-11-07 01:00:35,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-07 01:00:36,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62234443-27a0-4aee-a412-2d10090356e4/bin/utaipan-UUZaoUuFF8/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