./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7 --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 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:39:55,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:39:55,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:39:55,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:39:55,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:39:55,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:39:55,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:39:55,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:39:55,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:39:55,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:39:55,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:39:55,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:39:55,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:39:55,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:39:55,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:39:55,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:39:55,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:39:55,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:39:55,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:39:55,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:39:55,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:39:55,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:39:55,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:39:55,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:39:55,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:39:55,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:39:55,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:39:55,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:39:55,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:39:55,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:39:55,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:39:55,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:39:55,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:39:55,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:39:55,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:39:55,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:39:55,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:39:55,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:39:55,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:39:55,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:39:55,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:39:55,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:39:55,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:39:55,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:39:55,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:39:55,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:39:55,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:39:55,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:39:55,419 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:39:55,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:39:55,420 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:39:55,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:39:55,422 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:39:55,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:39:55,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:39:55,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:39:55,423 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:39:55,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:39:55,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:39:55,423 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:39:55,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:39:55,424 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:39:55,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:39:55,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:39:55,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:39:55,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:39:55,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:39:55,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:39:55,428 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:39:55,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:39:55,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:39:55,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:39:55,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:39:55,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:39:55,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:39:55,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:39:55,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:39:55,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:39:55,431 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:39:55,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:39:55,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:39:55,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:39:55,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:39:55,432 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_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-11-25 19:39:55,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:39:55,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:39:55,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:39:55,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:39:55,847 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:39:55,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-25 19:39:55,929 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/90e80f4a8/2a0f9e4324cd469b9d0c5a4768023dfd/FLAG22f52e856 [2021-11-25 19:39:56,584 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:39:56,589 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-25 19:39:56,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/90e80f4a8/2a0f9e4324cd469b9d0c5a4768023dfd/FLAG22f52e856 [2021-11-25 19:39:56,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/90e80f4a8/2a0f9e4324cd469b9d0c5a4768023dfd [2021-11-25 19:39:56,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:39:56,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:39:56,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:39:56,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:39:56,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:39:56,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:39:56" (1/1) ... [2021-11-25 19:39:56,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b012300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:56, skipping insertion in model container [2021-11-25 19:39:56,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:39:56" (1/1) ... [2021-11-25 19:39:56,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:39:56,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:39:57,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-25 19:39:57,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:39:57,278 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:39:57,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-25 19:39:57,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:39:57,333 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:39:57,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57 WrapperNode [2021-11-25 19:39:57,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:39:57,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:39:57,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:39:57,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:39:57,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,385 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2021-11-25 19:39:57,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:39:57,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:39:57,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:39:57,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:39:57,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:39:57,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:39:57,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:39:57,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:39:57,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (1/1) ... [2021-11-25 19:39:57,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:39:57,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:39:57,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:39:57,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-25 19:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:39:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-25 19:39:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:39:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:39:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:39:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:39:57,666 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:39:57,668 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:39:57,995 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:39:58,122 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:39:58,130 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-25 19:39:58,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:39:58 BoogieIcfgContainer [2021-11-25 19:39:58,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:39:58,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:39:58,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:39:58,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:39:58,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:39:56" (1/3) ... [2021-11-25 19:39:58,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a95818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:39:58, skipping insertion in model container [2021-11-25 19:39:58,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:39:57" (2/3) ... [2021-11-25 19:39:58,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a95818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:39:58, skipping insertion in model container [2021-11-25 19:39:58,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:39:58" (3/3) ... [2021-11-25 19:39:58,147 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-11-25 19:39:58,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:39:58,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:39:58,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:39:58,247 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 [2021-11-25 19:39:58,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:39:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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) [2021-11-25 19:39:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:39:58,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:39:58,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:39:58,287 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:39:58,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:39:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1228239283, now seen corresponding path program 1 times [2021-11-25 19:39:58,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:39:58,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118321914] [2021-11-25 19:39:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:39:58,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:39:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:39:58,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:39:58,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:39:58,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118321914] [2021-11-25 19:39:58,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118321914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:39:58,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:39:58,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:39:58,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255587880] [2021-11-25 19:39:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:39:58,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:39:58,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:39:58,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:39:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:39:58,556 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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) [2021-11-25 19:39:58,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:39:58,627 INFO L93 Difference]: Finished difference Result 42 states and 63 transitions. [2021-11-25 19:39:58,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:39:58,630 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 [2021-11-25 19:39:58,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:39:58,640 INFO L225 Difference]: With dead ends: 42 [2021-11-25 19:39:58,640 INFO L226 Difference]: Without dead ends: 19 [2021-11-25 19:39:58,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:39:58,649 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:39:58,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:39:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-25 19:39:58,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-25 19:39:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 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) [2021-11-25 19:39:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-11-25 19:39:58,697 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 8 [2021-11-25 19:39:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:39:58,698 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-25 19:39:58,698 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) [2021-11-25 19:39:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-25 19:39:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:39:58,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:39:58,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:39:58,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:39:58,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:39:58,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:39:58,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1648939227, now seen corresponding path program 1 times [2021-11-25 19:39:58,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:39:58,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702605426] [2021-11-25 19:39:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:39:58,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:39:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:39:58,755 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:39:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:39:58,830 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:39:58,830 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:39:58,863 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:39:58,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:39:58,870 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 19:39:58,875 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:39:58,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:39:58 BoogieIcfgContainer [2021-11-25 19:39:58,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:39:58,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:39:58,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:39:58,916 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:39:58,917 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:39:58" (3/4) ... [2021-11-25 19:39:58,920 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 19:39:58,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:39:58,923 INFO L158 Benchmark]: Toolchain (without parser) took 1982.20ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 60.9MB in the beginning and 111.2MB in the end (delta: -50.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:39:58,924 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:39:58,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.11ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 73.8MB in the end (delta: -13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:39:58,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.55ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 71.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:39:58,931 INFO L158 Benchmark]: Boogie Preprocessor took 37.30ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 70.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:39:58,935 INFO L158 Benchmark]: RCFGBuilder took 709.03ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 55.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 19:39:58,938 INFO L158 Benchmark]: TraceAbstraction took 779.18ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 54.9MB in the beginning and 111.2MB in the end (delta: -56.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:39:58,939 INFO L158 Benchmark]: Witness Printer took 5.40ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:39:58,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.11ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 73.8MB in the end (delta: -13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.55ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 71.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.30ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 70.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 709.03ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 55.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 779.18ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 54.9MB in the beginning and 111.2MB in the end (delta: -56.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.40ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 100]: 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 15, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = __VERIFIER_nondet_float(); [L94] COND TRUE x < -0.0f [L96] CALL, EXPR __ieee754_sqrtf(x) [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(x)=4294967297, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967297] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [\old(x)=4294967297, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967297] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [\old(x)=4294967297, hx=2139095040, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967297] [L96] RET, EXPR __ieee754_sqrtf(x) [L96] float res = __ieee754_sqrtf(x); [L99] CALL, EXPR isnan_float(res) [L15] return x != x; [L99] RET, EXPR isnan_float(res) [L99] COND TRUE !isnan_float(res) [L100] reach_error() VAL [one_sqrt=1, res=4294967296, tiny_sqrt=1/1000000000000000000000000000000, x=4294967297] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 20 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 [2021-11-25 19:39:59,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/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_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7 --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 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:40:01,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:40:01,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:40:01,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:40:01,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:40:01,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:40:01,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:40:01,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:40:01,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:40:01,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:40:01,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:40:01,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:40:01,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:40:01,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:40:01,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:40:01,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:40:01,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:40:01,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:40:01,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:40:01,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:40:01,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:40:01,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:40:01,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:40:01,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:40:01,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:40:01,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:40:01,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:40:01,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:40:01,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:40:01,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:40:01,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:40:01,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:40:01,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:40:01,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:40:01,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:40:01,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:40:01,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:40:01,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:40:01,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:40:01,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:40:01,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:40:01,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 19:40:01,994 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:40:01,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:40:01,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:40:01,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:40:01,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:40:01,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:40:01,997 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:40:01,997 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:40:01,997 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:40:01,997 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:40:01,999 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:40:01,999 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:40:02,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:40:02,001 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:40:02,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:40:02,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:40:02,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:40:02,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:40:02,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:40:02,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 19:40:02,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 19:40:02,002 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 19:40:02,002 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:40:02,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:40:02,003 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:40:02,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:40:02,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:40:02,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 19:40:02,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:40:02,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:40:02,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:40:02,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:40:02,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:40:02,005 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 19:40:02,005 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 19:40:02,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:40:02,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:40:02,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:40:02,006 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_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-11-25 19:40:02,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:40:02,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:40:02,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:40:02,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:40:02,502 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:40:02,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-25 19:40:02,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/6b5c3dad6/5e35846bb95546efb76d303fcad90bd1/FLAGbb1d8aee5 [2021-11-25 19:40:03,284 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:40:03,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-11-25 19:40:03,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/6b5c3dad6/5e35846bb95546efb76d303fcad90bd1/FLAGbb1d8aee5 [2021-11-25 19:40:03,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/data/6b5c3dad6/5e35846bb95546efb76d303fcad90bd1 [2021-11-25 19:40:03,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:40:03,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:40:03,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:40:03,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:40:03,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:40:03,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:40:03" (1/1) ... [2021-11-25 19:40:03,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0f5e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:03, skipping insertion in model container [2021-11-25 19:40:03,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:40:03" (1/1) ... [2021-11-25 19:40:03,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:40:03,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:40:03,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-25 19:40:03,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:40:03,900 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:40:03,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-11-25 19:40:03,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:40:04,014 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:40:04,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04 WrapperNode [2021-11-25 19:40:04,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:40:04,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:40:04,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:40:04,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:40:04,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,101 INFO L137 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2021-11-25 19:40:04,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:40:04,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:40:04,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:40:04,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:40:04,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:40:04,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:40:04,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:40:04,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:40:04,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (1/1) ... [2021-11-25 19:40:04,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:40:04,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:40:04,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:40:04,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:40:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:40:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 19:40:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:40:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-25 19:40:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 19:40:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:40:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:40:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-25 19:40:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 19:40:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:40:04,352 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:40:04,354 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:40:05,330 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:40:05,338 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:40:05,338 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-25 19:40:05,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:40:05 BoogieIcfgContainer [2021-11-25 19:40:05,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:40:05,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:40:05,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:40:05,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:40:05,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:40:03" (1/3) ... [2021-11-25 19:40:05,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c64b414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:40:05, skipping insertion in model container [2021-11-25 19:40:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:40:04" (2/3) ... [2021-11-25 19:40:05,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c64b414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:40:05, skipping insertion in model container [2021-11-25 19:40:05,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:40:05" (3/3) ... [2021-11-25 19:40:05,364 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-11-25 19:40:05,370 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:40:05,371 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:40:05,424 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:40:05,433 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 [2021-11-25 19:40:05,433 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:40:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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) [2021-11-25 19:40:05,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 19:40:05,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:40:05,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:40:05,461 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:40:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:40:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-11-25 19:40:05,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:40:05,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376267903] [2021-11-25 19:40:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:40:05,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:40:05,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:40:05,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:40:05,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 19:40:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:40:05,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 19:40:05,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:40:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:40:05,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:40:05,824 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:40:05,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376267903] [2021-11-25 19:40:05,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376267903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:40:05,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:40:05,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:40:05,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649307266] [2021-11-25 19:40:05,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:40:05,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:40:05,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:40:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:40:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:40:05,872 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:40:05,894 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2021-11-25 19:40:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:40:05,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-25 19:40:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:40:05,907 INFO L225 Difference]: With dead ends: 67 [2021-11-25 19:40:05,907 INFO L226 Difference]: Without dead ends: 31 [2021-11-25 19:40:05,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:40:05,916 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:40:05,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:40:05,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-25 19:40:05,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-25 19:40:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-11-25 19:40:05,958 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2021-11-25 19:40:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:40:05,959 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-11-25 19:40:05,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-11-25 19:40:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:40:05,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:40:05,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:40:05,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:40:06,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:40:06,175 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:40:06,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:40:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-11-25 19:40:06,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:40:06,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727800211] [2021-11-25 19:40:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:40:06,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:40:06,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:40:06,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:40:06,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 19:40:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:40:06,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 19:40:06,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:40:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:40:16,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:40:16,070 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:40:16,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727800211] [2021-11-25 19:40:16,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727800211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:40:16,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:40:16,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 19:40:16,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644566147] [2021-11-25 19:40:16,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:40:16,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:40:16,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:40:16,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:40:16,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-11-25 19:40:16,075 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-11-25 19:40:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:40:23,483 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2021-11-25 19:40:23,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 19:40:23,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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 11 [2021-11-25 19:40:23,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:40:23,489 INFO L225 Difference]: With dead ends: 36 [2021-11-25 19:40:23,489 INFO L226 Difference]: Without dead ends: 31 [2021-11-25 19:40:23,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=30, Invalid=77, Unknown=3, NotChecked=0, Total=110 [2021-11-25 19:40:23,492 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:40:23,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 204 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 22 Unchecked, 1.7s Time] [2021-11-25 19:40:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-25 19:40:23,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-25 19:40:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2021-11-25 19:40:23,500 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 11 [2021-11-25 19:40:23,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:40:23,501 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-11-25 19:40:23,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-11-25 19:40:23,501 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2021-11-25 19:40:23,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 19:40:23,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:40:23,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:40:23,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:40:23,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:40:23,703 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:40:23,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:40:23,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1000761490, now seen corresponding path program 1 times [2021-11-25 19:40:23,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:40:23,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58151936] [2021-11-25 19:40:23,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:40:23,705 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:40:23,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:40:23,706 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:40:23,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 19:40:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:40:23,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:40:23,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:40:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:40:25,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:40:25,094 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:40:25,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58151936] [2021-11-25 19:40:25,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58151936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:40:25,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:40:25,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:40:25,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585614152] [2021-11-25 19:40:25,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:40:25,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:40:25,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:40:25,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:40:25,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:40:25,098 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:28,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:40:28,994 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2021-11-25 19:40:28,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:40:28,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 19:40:28,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:40:28,996 INFO L225 Difference]: With dead ends: 36 [2021-11-25 19:40:28,997 INFO L226 Difference]: Without dead ends: 31 [2021-11-25 19:40:28,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-11-25 19:40:28,999 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:40:29,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 117 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 7 Unchecked, 1.2s Time] [2021-11-25 19:40:29,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-25 19:40:29,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-25 19:40:29,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-11-25 19:40:29,006 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 12 [2021-11-25 19:40:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:40:29,007 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-11-25 19:40:29,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2021-11-25 19:40:29,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:40:29,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:40:29,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:40:29,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:40:29,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:40:29,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:40:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:40:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash 939378801, now seen corresponding path program 1 times [2021-11-25 19:40:29,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:40:29,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425756392] [2021-11-25 19:40:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:40:29,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:40:29,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:40:29,221 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:40:29,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 19:40:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:40:29,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:40:29,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:40:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:40:34,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:40:34,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:40:34,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425756392] [2021-11-25 19:40:34,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425756392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:40:34,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:40:34,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:40:34,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454624127] [2021-11-25 19:40:34,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:40:34,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:40:34,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:40:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:40:34,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:40:34,758 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:38,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:40:38,616 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-11-25 19:40:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:40:38,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 19:40:38,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:40:38,618 INFO L225 Difference]: With dead ends: 36 [2021-11-25 19:40:38,618 INFO L226 Difference]: Without dead ends: 31 [2021-11-25 19:40:38,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:40:38,620 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:40:38,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 135 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 6 Unchecked, 1.2s Time] [2021-11-25 19:40:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-25 19:40:38,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-25 19:40:38,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:38,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-11-25 19:40:38,624 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 13 [2021-11-25 19:40:38,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:40:38,625 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-11-25 19:40:38,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:38,625 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-11-25 19:40:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 19:40:38,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:40:38,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:40:38,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:40:38,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:40:38,830 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:40:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:40:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash -704868097, now seen corresponding path program 1 times [2021-11-25 19:40:38,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:40:38,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351370969] [2021-11-25 19:40:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:40:38,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:40:38,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:40:38,834 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:40:38,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 19:40:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:40:38,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 19:40:38,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:40:40,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:40:40,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:40:40,214 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:40:40,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351370969] [2021-11-25 19:40:40,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351370969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:40:40,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:40:40,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:40:40,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743434179] [2021-11-25 19:40:40,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:40:40,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:40:40,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:40:40,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:40:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:40:40,218 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:40:40,555 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-11-25 19:40:40,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:40:40,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 19:40:40,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:40:40,557 INFO L225 Difference]: With dead ends: 31 [2021-11-25 19:40:40,557 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:40:40,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:40:40,559 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:40:40,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:40:40,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:40:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:40:40,561 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) [2021-11-25 19:40:40,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:40:40,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-11-25 19:40:40,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:40:40,561 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:40:40,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:40:40,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:40:40,580 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:40:40,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-25 19:40:40,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:40:40,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 19:40:54,869 WARN L227 SmtUtils]: Spent 13.74s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-25 19:40:54,872 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-25 19:40:54,872 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 103) no Hoare annotation was computed. [2021-11-25 19:40:54,872 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 19:40:54,872 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-25 19:40:54,873 INFO L858 garLoopResultBuilder]: For program point L94-2(lines 94 103) no Hoare annotation was computed. [2021-11-25 19:40:54,873 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-25 19:40:54,873 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2021-11-25 19:40:54,873 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2021-11-25 19:40:54,873 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2021-11-25 19:40:54,873 INFO L854 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2021-11-25 19:40:54,873 INFO L858 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2021-11-25 19:40:54,873 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-11-25 19:40:54,874 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-11-25 19:40:54,874 INFO L861 garLoopResultBuilder]: At program point L105(lines 86 106) the Hoare annotation is: true [2021-11-25 19:40:54,874 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-25 19:40:54,875 INFO L854 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2021-11-25 19:40:54,875 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2021-11-25 19:40:54,875 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2021-11-25 19:40:54,875 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-25 19:40:54,875 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2021-11-25 19:40:54,875 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-11-25 19:40:54,875 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2021-11-25 19:40:54,875 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2021-11-25 19:40:54,876 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (fp.lt |ULTIMATE.start___ieee754_sqrtf_~x#1| (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-25 19:40:54,876 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2021-11-25 19:40:54,876 INFO L858 garLoopResultBuilder]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2021-11-25 19:40:54,876 INFO L854 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2021-11-25 19:40:54,876 INFO L858 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2021-11-25 19:40:54,877 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 102) no Hoare annotation was computed. [2021-11-25 19:40:54,877 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2021-11-25 19:40:54,877 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 19:40:54,894 INFO L854 garLoopResultBuilder]: At program point L83(lines 19 84) the Hoare annotation is: (or (exists ((|ULTIMATE.start___ieee754_sqrtf_~ix~0#1| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|)))) (and (fp.lt .cse0 (fp.neg (_ +zero 8 24))) (not (bvult (bvand (_ bv2147483647 32) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|) (_ bv2139095040 32))) (= (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0) |ULTIMATE.start___ieee754_sqrtf_#res#1|)))) (and (exists ((|ULTIMATE.start___ieee754_sqrtf_~x#1| (_ FloatingPoint 8 24))) (= (let ((.cse1 (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_sqrtf_~x#1| |ULTIMATE.start___ieee754_sqrtf_~x#1|))) (fp.div roundNearestTiesToEven .cse1 .cse1)) |ULTIMATE.start___ieee754_sqrtf_#res#1|)) (= currentRoundingMode roundNearestTiesToEven))) [2021-11-25 19:40:54,894 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-11-25 19:40:54,894 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-11-25 19:40:54,894 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2021-11-25 19:40:54,898 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-25 19:40:54,900 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:40:54,915 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,918 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,929 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,929 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,931 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,931 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,931 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,931 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,931 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,933 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,935 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,941 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,941 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:54,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,943 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,943 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:54,943 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:54,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:40:54 BoogieIcfgContainer [2021-11-25 19:40:54,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:40:54,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:40:54,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:40:54,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:40:54,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:40:05" (3/4) ... [2021-11-25 19:40:54,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 19:40:54,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-25 19:40:54,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-25 19:40:54,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 19:40:54,971 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 19:40:55,001 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0#1 : bv32 :: (~fp.lt~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && !~bvult32(~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0#1), 2139095040bv32)) && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0])), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0])) == \result) || ((\exists ULTIMATE.start___ieee754_sqrtf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1)) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2021-11-25 19:40:55,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2021-11-25 19:40:55,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:40:55,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:40:55,040 INFO L158 Benchmark]: Toolchain (without parser) took 51412.72ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 42.5MB in the beginning and 39.4MB in the end (delta: 3.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2021-11-25 19:40:55,041 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:40:55,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.05ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 45.0MB in the end (delta: -2.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 19:40:55,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.22ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 43.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:40:55,042 INFO L158 Benchmark]: Boogie Preprocessor took 62.55ms. Allocated memory is still 62.9MB. Free memory was 43.0MB in the beginning and 41.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:40:55,042 INFO L158 Benchmark]: RCFGBuilder took 1174.41ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 29.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 19:40:55,043 INFO L158 Benchmark]: TraceAbstraction took 49607.29ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 28.5MB in the beginning and 43.0MB in the end (delta: -14.5MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-11-25 19:40:55,043 INFO L158 Benchmark]: Witness Printer took 88.89ms. Allocated memory is still 86.0MB. Free memory was 43.0MB in the beginning and 39.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 19:40:55,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.05ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 45.0MB in the end (delta: -2.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.22ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 43.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.55ms. Allocated memory is still 62.9MB. Free memory was 43.0MB in the beginning and 41.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1174.41ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 29.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 49607.29ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 28.5MB in the beginning and 43.0MB in the end (delta: -14.5MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Witness Printer took 88.89ms. Allocated memory is still 86.0MB. Free memory was 43.0MB in the beginning and 39.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - 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_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - 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_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - 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_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - 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: 100]: 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, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 512 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 35 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 156 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 23.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 78 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 14.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 64 ConstructedInterpolants, 5 QuantifiedInterpolants, 311 SizeOfPredicates, 30 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2021-11-25 19:40:55,076 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,076 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.lt~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 19]: Loop Invariant [2021-11-25 19:40:55,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,077 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,077 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,079 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,081 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,082 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:40:55,083 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,083 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-11-25 19:40:55,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0#1 : bv32 :: (~fp.lt~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && !~bvult32(~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0#1), 2139095040bv32)) && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0])), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0])) == \result) || ((\exists ULTIMATE.start___ieee754_sqrtf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1)) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-25 19:40:55,289 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-25 19:40:55,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de2650b-86b2-48bb-a753-0b1643b3963f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE