./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS --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 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:30:15,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:30:15,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:30:15,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:30:15,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:30:15,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:30:15,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:30:15,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:30:15,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:30:15,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:30:15,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:30:15,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:30:15,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:30:15,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:30:15,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:30:15,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:30:15,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:30:15,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:30:15,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:30:15,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:30:15,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:30:15,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:30:15,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:30:15,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:30:15,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:30:15,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:30:15,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:30:15,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:30:15,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:30:15,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:30:15,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:30:15,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:30:15,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:30:15,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:30:15,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:30:15,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:30:15,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:30:15,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:30:15,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:30:15,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:30:15,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:30:15,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:30:15,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:30:15,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:30:15,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:30:15,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:30:15,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:30:15,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:30:15,751 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:30:15,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:30:15,752 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:30:15,752 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:30:15,753 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:30:15,753 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:30:15,753 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:30:15,754 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:30:15,754 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:30:15,754 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:30:15,754 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:30:15,754 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:30:15,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:30:15,755 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:30:15,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:30:15,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:30:15,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:30:15,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:30:15,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:30:15,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:30:15,758 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:30:15,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:30:15,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:30:15,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:30:15,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:30:15,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:30:15,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:30:15,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:30:15,760 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:30:15,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:30:15,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:30:15,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:30:15,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:30:15,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:30:15,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:30:15,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 [2022-11-19 07:30:16,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:30:16,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:30:16,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:30:16,056 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:30:16,056 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:30:16,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-11-19 07:30:16,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/e59753d45/197ce995f7f84dd9aa69852ba674867e/FLAGe706f0a21 [2022-11-19 07:30:16,536 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:30:16,536 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-11-19 07:30:16,540 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/e59753d45/197ce995f7f84dd9aa69852ba674867e/FLAGe706f0a21 [2022-11-19 07:30:16,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/e59753d45/197ce995f7f84dd9aa69852ba674867e [2022-11-19 07:30:16,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:30:16,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:30:16,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:30:16,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:30:16,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:30:16,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:30:16" (1/1) ... [2022-11-19 07:30:16,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b5d378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:16, skipping insertion in model container [2022-11-19 07:30:16,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:30:16" (1/1) ... [2022-11-19 07:30:16,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:30:16,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:30:17,192 WARN L234 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_dd538872-6045-489b-995f-06fe4790dcf0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-11-19 07:30:17,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:30:17,207 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:30:17,223 WARN L234 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_dd538872-6045-489b-995f-06fe4790dcf0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-11-19 07:30:17,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:30:17,238 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:30:17,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17 WrapperNode [2022-11-19 07:30:17,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:30:17,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:30:17,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:30:17,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:30:17,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,276 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-19 07:30:17,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:30:17,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:30:17,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:30:17,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:30:17,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:30:17,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:30:17,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:30:17,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:30:17,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (1/1) ... [2022-11-19 07:30:17,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:30:17,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:30:17,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:30:17,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:30:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:30:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:30:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:30:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:30:17,476 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:30:17,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:30:17,593 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:30:17,609 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:30:17,609 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:30:17,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:30:17 BoogieIcfgContainer [2022-11-19 07:30:17,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:30:17,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:30:17,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:30:17,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:30:17,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:30:16" (1/3) ... [2022-11-19 07:30:17,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de391b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:30:17, skipping insertion in model container [2022-11-19 07:30:17,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:17" (2/3) ... [2022-11-19 07:30:17,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de391b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:30:17, skipping insertion in model container [2022-11-19 07:30:17,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:30:17" (3/3) ... [2022-11-19 07:30:17,621 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2022-11-19 07:30:17,639 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:30:17,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:30:17,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:30:17,693 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c39b2a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:30:17,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:30:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-11-19 07:30:17,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 07:30:17,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:17,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 07:30:17,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:17,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash 44367, now seen corresponding path program 1 times [2022-11-19 07:30:17,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:17,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832737522] [2022-11-19 07:30:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:17,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:30:17,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:30:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:30:17,887 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:30:17,889 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:30:17,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:30:17,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:30:17,903 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:30:17,908 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:30:17,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:30:17 BoogieIcfgContainer [2022-11-19 07:30:17,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:30:17,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:30:17,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:30:17,930 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:30:17,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:30:17" (3/4) ... [2022-11-19 07:30:17,934 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:30:17,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:30:17,936 INFO L158 Benchmark]: Toolchain (without parser) took 974.10ms. Allocated memory is still 132.1MB. Free memory was 98.3MB in the beginning and 79.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-11-19 07:30:17,936 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:30:17,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.74ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 105.5MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:30:17,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.33ms. Allocated memory is still 132.1MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:30:17,938 INFO L158 Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 132.1MB. Free memory was 104.2MB in the beginning and 103.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:30:17,939 INFO L158 Benchmark]: RCFGBuilder took 298.44ms. Allocated memory is still 132.1MB. Free memory was 103.0MB in the beginning and 94.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:30:17,940 INFO L158 Benchmark]: TraceAbstraction took 315.06ms. Allocated memory is still 132.1MB. Free memory was 93.3MB in the beginning and 80.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:30:17,940 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 132.1MB. Free memory was 80.4MB in the beginning and 79.9MB in the end (delta: 437.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:30:17,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.74ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 105.5MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.33ms. Allocated memory is still 132.1MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.14ms. Allocated memory is still 132.1MB. Free memory was 104.2MB in the beginning and 103.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.44ms. Allocated memory is still 132.1MB. Free memory was 103.0MB in the beginning and 94.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 315.06ms. Allocated memory is still 132.1MB. Free memory was 93.3MB in the beginning and 80.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 132.1MB. Free memory was 80.4MB in the beginning and 79.9MB in the end (delta: 437.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: 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 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, f=13567505/21267647932558653966460912964485513216] [L12] COND TRUE !(result == target) VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, f=13567505/21267647932558653966460912964485513216] [L12] reach_error() VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, f=13567505/21267647932558653966460912964485513216] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-19 07:30:17,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS --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 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:30:20,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:30:20,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:30:20,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:30:20,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:30:20,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:30:20,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:30:20,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:30:20,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:30:20,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:30:20,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:30:20,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:30:20,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:30:20,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:30:20,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:30:20,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:30:20,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:30:20,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:30:20,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:30:20,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:30:20,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:30:20,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:30:20,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:30:20,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:30:20,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:30:20,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:30:20,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:30:20,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:30:20,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:30:20,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:30:20,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:30:20,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:30:20,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:30:20,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:30:20,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:30:20,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:30:20,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:30:20,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:30:20,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:30:20,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:30:20,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:30:20,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:30:20,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:30:20,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:30:20,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:30:20,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:30:20,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:30:20,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:30:20,396 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:30:20,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:30:20,396 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:30:20,396 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:30:20,398 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:30:20,398 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:30:20,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:30:20,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:30:20,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:30:20,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:30:20,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:30:20,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:30:20,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:30:20,401 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:30:20,401 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:30:20,401 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:30:20,402 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:30:20,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:30:20,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:30:20,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:30:20,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:30:20,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:30:20,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:30:20,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:30:20,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:30:20,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:30:20,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:30:20,404 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:30:20,404 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:30:20,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:30:20,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:30:20,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:30:20,405 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_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 [2022-11-19 07:30:20,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:30:20,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:30:20,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:30:20,823 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:30:20,827 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:30:20,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-11-19 07:30:20,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/4a538ac8c/9535e84f6b1d49edbe925bc841646bf6/FLAG39c4f3e2a [2022-11-19 07:30:21,358 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:30:21,359 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-11-19 07:30:21,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/4a538ac8c/9535e84f6b1d49edbe925bc841646bf6/FLAG39c4f3e2a [2022-11-19 07:30:21,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/data/4a538ac8c/9535e84f6b1d49edbe925bc841646bf6 [2022-11-19 07:30:21,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:30:21,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:30:21,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:30:21,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:30:21,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:30:21,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:30:21" (1/1) ... [2022-11-19 07:30:21,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c91a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:21, skipping insertion in model container [2022-11-19 07:30:21,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:30:21" (1/1) ... [2022-11-19 07:30:21,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:30:21,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:30:21,931 WARN L234 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_dd538872-6045-489b-995f-06fe4790dcf0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-11-19 07:30:21,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:30:21,950 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:30:21,981 WARN L234 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_dd538872-6045-489b-995f-06fe4790dcf0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-11-19 07:30:21,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:30:22,005 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:30:22,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22 WrapperNode [2022-11-19 07:30:22,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:30:22,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:30:22,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:30:22,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:30:22,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,090 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-19 07:30:22,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:30:22,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:30:22,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:30:22,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:30:22,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,133 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:30:22,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:30:22,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:30:22,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:30:22,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (1/1) ... [2022-11-19 07:30:22,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:30:22,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:30:22,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:30:22,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:30:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:30:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:30:22,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:30:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:30:22,317 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:30:22,319 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:30:22,650 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:30:22,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:30:22,655 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:30:22,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:30:22 BoogieIcfgContainer [2022-11-19 07:30:22,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:30:22,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:30:22,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:30:22,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:30:22,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:30:21" (1/3) ... [2022-11-19 07:30:22,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f4ba2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:30:22, skipping insertion in model container [2022-11-19 07:30:22,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:22" (2/3) ... [2022-11-19 07:30:22,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f4ba2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:30:22, skipping insertion in model container [2022-11-19 07:30:22,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:30:22" (3/3) ... [2022-11-19 07:30:22,687 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2022-11-19 07:30:22,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:30:22,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:30:22,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:30:22,794 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b24afcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:30:22,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:30:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) [2022-11-19 07:30:22,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:30:22,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:22,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:30:22,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:22,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:22,834 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-11-19 07:30:22,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:30:22,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445552521] [2022-11-19 07:30:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:22,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:30:22,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:30:22,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:30:22,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:30:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:23,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:30:23,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:30:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:30:23,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:30:23,180 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:30:23,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445552521] [2022-11-19 07:30:23,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445552521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:23,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:23,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:30:23,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011966181] [2022-11-19 07:30:23,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:23,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:30:23,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:30:23,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:30:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:30:23,227 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-19 07:30:23,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:23,407 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-11-19 07:30:23,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:30:23,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-19 07:30:23,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:23,417 INFO L225 Difference]: With dead ends: 13 [2022-11-19 07:30:23,417 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:30:23,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:30:23,423 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:23,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:30:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:30:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:30:23,446 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) [2022-11-19 07:30:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:30:23,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-19 07:30:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:23,447 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:30:23,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-19 07:30:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:30:23,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:30:23,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:30:23,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:30:23,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:30:23,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:30:23,671 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:30:23,671 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 07:30:23,672 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:30:23,672 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 07:30:23,672 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-11-19 07:30:23,673 INFO L895 garLoopResultBuilder]: At program point L14(lines 5 15) the Hoare annotation is: (and (= |ULTIMATE.start_main_~result~0#1| (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0))))) (= (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))) |ULTIMATE.start_main_~target~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-19 07:30:23,673 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-11-19 07:30:23,673 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-11-19 07:30:23,674 INFO L899 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2022-11-19 07:30:23,677 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:30:23,681 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:30:23,690 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,691 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,691 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,692 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,692 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,695 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,696 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,696 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,696 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,696 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:30:23 BoogieIcfgContainer [2022-11-19 07:30:23,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:30:23,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:30:23,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:30:23,699 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:30:23,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:30:22" (3/4) ... [2022-11-19 07:30:23,703 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:30:23,712 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-19 07:30:23,713 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 07:30:23,713 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:30:23,713 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:30:23,713 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:30:23,744 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:30:23,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:30:23,746 INFO L158 Benchmark]: Toolchain (without parser) took 1987.07ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 38.4MB in the beginning and 45.1MB in the end (delta: -6.8MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-11-19 07:30:23,746 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:30:23,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.53ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 27.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:30:23,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.74ms. Allocated memory is still 58.7MB. Free memory was 27.3MB in the beginning and 42.7MB in the end (delta: -15.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:30:23,748 INFO L158 Benchmark]: Boogie Preprocessor took 45.46ms. Allocated memory is still 58.7MB. Free memory was 42.7MB in the beginning and 41.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:30:23,749 INFO L158 Benchmark]: RCFGBuilder took 524.73ms. Allocated memory is still 58.7MB. Free memory was 41.4MB in the beginning and 32.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:30:23,749 INFO L158 Benchmark]: TraceAbstraction took 1033.41ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 32.0MB in the beginning and 47.6MB in the end (delta: -15.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-19 07:30:23,750 INFO L158 Benchmark]: Witness Printer took 46.33ms. Allocated memory is still 81.8MB. Free memory was 47.6MB in the beginning and 45.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:30:23,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.53ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 27.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.74ms. Allocated memory is still 58.7MB. Free memory was 27.3MB in the beginning and 42.7MB in the end (delta: -15.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.46ms. Allocated memory is still 58.7MB. Free memory was 42.7MB in the beginning and 41.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 524.73ms. Allocated memory is still 58.7MB. Free memory was 41.4MB in the beginning and 32.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1033.41ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 32.0MB in the beginning and 47.6MB in the end (delta: -15.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Witness Printer took 46.33ms. Allocated memory is still 81.8MB. Free memory was 47.6MB in the beginning and 45.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 12]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant [2022-11-19 07:30:23,764 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,764 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,765 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,765 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,765 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,766 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,766 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,766 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,767 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 07:30:23,767 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (result == ~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) && ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) == target) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-11-19 07:30:23,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd538872-6045-489b-995f-06fe4790dcf0/bin/utaipan-I9t0OCRTmS/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