./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 ........................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:47:30,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:47:30,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:47:30,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:47:30,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:47:30,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:47:30,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:47:30,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:47:30,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:47:30,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:47:30,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:47:30,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:47:30,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:47:30,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:47:30,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:47:30,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:47:30,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:47:30,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:47:30,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:47:30,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:47:30,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:47:30,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:47:30,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:47:30,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:47:30,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:47:30,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:47:30,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:47:30,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:47:30,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:47:30,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:47:30,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:47:30,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:47:30,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:47:30,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:47:30,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:47:30,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:47:30,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:47:30,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:47:30,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:47:30,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:47:30,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:47:30,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:47:30,463 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:47:30,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:47:30,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:47:30,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:47:30,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:47:30,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:47:30,474 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:47:30,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:47:30,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:47:30,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:47:30,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:47:30,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:47:30,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:47:30,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:47:30,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:47:30,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:47:30,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:47:30,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:47:30,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:47:30,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:47:30,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:47:30,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:47:30,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:47:30,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:47:30,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:47:30,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:47:30,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:47:30,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:47:30,482 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:47:30,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:47:30,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:47:30,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:47:30,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2021-10-21 19:47:30,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:47:30,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:47:30,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:47:30,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:47:30,880 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:47:30,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-21 19:47:30,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/a6e19e5d7/f8184ea391464b7190316501cdfe8c68/FLAG9bbb9ff39 [2021-10-21 19:47:31,646 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:47:31,656 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-21 19:47:31,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/a6e19e5d7/f8184ea391464b7190316501cdfe8c68/FLAG9bbb9ff39 [2021-10-21 19:47:31,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/a6e19e5d7/f8184ea391464b7190316501cdfe8c68 [2021-10-21 19:47:31,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:47:31,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:47:31,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:47:31,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:47:31,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:47:31,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:47:31" (1/1) ... [2021-10-21 19:47:31,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4137baa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:31, skipping insertion in model container [2021-10-21 19:47:31,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:47:31" (1/1) ... [2021-10-21 19:47:31,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:47:32,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:47:32,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-21 19:47:32,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:47:32,308 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:47:32,401 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-21 19:47:32,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:47:32,436 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:47:32,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32 WrapperNode [2021-10-21 19:47:32,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:47:32,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:47:32,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:47:32,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:47:32,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:47:32,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:47:32,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:47:32,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:47:32,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:47:32,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:47:32,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:47:32,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:47:32,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (1/1) ... [2021-10-21 19:47:32,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:47:32,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:47:32,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:47:32,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:47:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:47:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:47:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 19:47:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:47:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 19:47:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:47:32,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:47:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:47:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:47:33,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:47:33,245 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-21 19:47:33,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:47:33 BoogieIcfgContainer [2021-10-21 19:47:33,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:47:33,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:47:33,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:47:33,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:47:33,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:47:31" (1/3) ... [2021-10-21 19:47:33,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b670e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:47:33, skipping insertion in model container [2021-10-21 19:47:33,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:32" (2/3) ... [2021-10-21 19:47:33,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b670e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:47:33, skipping insertion in model container [2021-10-21 19:47:33,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:47:33" (3/3) ... [2021-10-21 19:47:33,259 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2021-10-21 19:47:33,266 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:47:33,267 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:47:33,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:47:33,338 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:47:33,339 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:47:33,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:33,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 19:47:33,362 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:47:33,363 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:47:33,363 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:47:33,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:47:33,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2021-10-21 19:47:33,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:47:33,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80954956] [2021-10-21 19:47:33,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:47:33,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:47:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:47:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:47:33,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:47:33,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80954956] [2021-10-21 19:47:33,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80954956] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:47:33,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:47:33,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:47:33,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940707283] [2021-10-21 19:47:33,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:47:33,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:47:33,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:47:33,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:47:33,619 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:47:33,642 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2021-10-21 19:47:33,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:47:33,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-21 19:47:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:47:33,656 INFO L225 Difference]: With dead ends: 58 [2021-10-21 19:47:33,656 INFO L226 Difference]: Without dead ends: 27 [2021-10-21 19:47:33,660 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:47:33,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-21 19:47:33,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-21 19:47:33,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2021-10-21 19:47:33,702 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2021-10-21 19:47:33,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:47:33,703 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2021-10-21 19:47:33,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:33,704 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-10-21 19:47:33,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:47:33,705 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:47:33,705 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:47:33,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:47:33,706 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:47:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:47:33,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2021-10-21 19:47:33,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:47:33,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717121826] [2021-10-21 19:47:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:47:33,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:47:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:47:33,778 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:47:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:47:33,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:47:33,867 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:47:33,869 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:47:33,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:47:33,880 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:47:33,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:47:33 BoogieIcfgContainer [2021-10-21 19:47:33,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:47:33,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:47:33,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:47:33,960 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:47:33,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:47:33" (3/4) ... [2021-10-21 19:47:33,966 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:47:33,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:47:33,970 INFO L168 Benchmark]: Toolchain (without parser) took 2007.34 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 51.6 MB in the beginning and 49.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:47:33,971 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:47:33,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.21 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 51.4 MB in the beginning and 91.2 MB in the end (delta: -39.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:47:33,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.70 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 89.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:47:34,009 INFO L168 Benchmark]: Boogie Preprocessor took 54.92 ms. Allocated memory is still 117.4 MB. Free memory was 89.1 MB in the beginning and 87.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:47:34,010 INFO L168 Benchmark]: RCFGBuilder took 644.88 ms. Allocated memory is still 117.4 MB. Free memory was 87.4 MB in the beginning and 74.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:47:34,011 INFO L168 Benchmark]: TraceAbstraction took 708.50 ms. Allocated memory is still 117.4 MB. Free memory was 74.4 MB in the beginning and 49.3 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:47:34,011 INFO L168 Benchmark]: Witness Printer took 6.53 ms. Allocated memory is still 117.4 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:47:34,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 486.21 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 51.4 MB in the beginning and 91.2 MB in the end (delta: -39.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.70 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 89.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.92 ms. Allocated memory is still 117.4 MB. Free memory was 89.1 MB in the beginning and 87.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 644.88 ms. Allocated memory is still 117.4 MB. Free memory was 87.4 MB in the beginning and 74.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 708.50 ms. Allocated memory is still 117.4 MB. Free memory was 74.4 MB in the beginning and 49.3 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 6.53 ms. Allocated memory is still 117.4 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 127]: 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 45. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L122] float x = -1.0f / 0.0f; [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L123] float res = __ieee754_logf(x); [L113] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L126] COND TRUE !isnan_float(res) [L127] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 549.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 62.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.5ms SsaConstructionTime, 100.4ms SatisfiabilityAnalysisTime, 74.4ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:47:34,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:47:37,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:47:37,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:47:37,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:47:37,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:47:37,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:47:37,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:47:37,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:47:37,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:47:37,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:47:37,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:47:37,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:47:37,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:47:37,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:47:37,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:47:37,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:47:37,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:47:37,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:47:37,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:47:37,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:47:37,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:47:37,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:47:37,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:47:37,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:47:37,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:47:37,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:47:37,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:47:37,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:47:37,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:47:37,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:47:37,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:47:37,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:47:37,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:47:37,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:47:37,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:47:37,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:47:37,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:47:37,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:47:37,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:47:37,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:47:37,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:47:37,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:47:37,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:47:37,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:47:37,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:47:37,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:47:37,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:47:37,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:47:37,398 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:47:37,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:47:37,398 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:47:37,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:47:37,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:47:37,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:47:37,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:47:37,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:47:37,401 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:47:37,402 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:47:37,402 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:47:37,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:47:37,402 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:47:37,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:47:37,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:47:37,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:47:37,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:47:37,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:47:37,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:47:37,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:47:37,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:47:37,405 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:47:37,405 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:47:37,406 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:47:37,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:47:37,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:47:37,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:47:37,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:47:37,408 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_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2021-10-21 19:47:37,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:47:37,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:47:37,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:47:37,931 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:47:37,932 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:47:37,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-21 19:47:38,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/bcff46d65/80544a3317f74b1a8dbd70ae5ea03928/FLAG82c92ad23 [2021-10-21 19:47:38,720 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:47:38,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-21 19:47:38,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/bcff46d65/80544a3317f74b1a8dbd70ae5ea03928/FLAG82c92ad23 [2021-10-21 19:47:39,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/data/bcff46d65/80544a3317f74b1a8dbd70ae5ea03928 [2021-10-21 19:47:39,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:47:39,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:47:39,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:47:39,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:47:39,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:47:39,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126f51fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39, skipping insertion in model container [2021-10-21 19:47:39,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:47:39,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:47:39,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-21 19:47:39,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:47:39,476 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:47:39,558 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-21 19:47:39,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:47:39,603 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:47:39,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39 WrapperNode [2021-10-21 19:47:39,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:47:39,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:47:39,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:47:39,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:47:39,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:47:39,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:47:39,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:47:39,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:47:39,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:47:39,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:47:39,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:47:39,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:47:39,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (1/1) ... [2021-10-21 19:47:39,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:47:39,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:47:39,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:47:39,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:47:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:47:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:47:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-21 19:47:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:47:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:47:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:47:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-21 19:47:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:47:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:47:57,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:47:57,657 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-21 19:47:57,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:47:57 BoogieIcfgContainer [2021-10-21 19:47:57,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:47:57,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:47:57,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:47:57,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:47:57,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:47:39" (1/3) ... [2021-10-21 19:47:57,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19aac88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:47:57, skipping insertion in model container [2021-10-21 19:47:57,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:47:39" (2/3) ... [2021-10-21 19:47:57,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19aac88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:47:57, skipping insertion in model container [2021-10-21 19:47:57,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:47:57" (3/3) ... [2021-10-21 19:47:57,672 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2021-10-21 19:47:57,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:47:57,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:47:57,742 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:47:57,750 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:47:57,750 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:47:57,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:57,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 19:47:57,799 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:47:57,800 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:47:57,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:47:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:47:57,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2021-10-21 19:47:57,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:47:57,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314047100] [2021-10-21 19:47:57,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:47:57,837 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:47:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:47:57,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:47:57,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:47:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:47:58,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:47:58,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:47:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:47:58,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:47:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:47:58,933 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:47:58,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314047100] [2021-10-21 19:47:58,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314047100] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:47:58,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:47:58,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:47:58,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053399069] [2021-10-21 19:47:58,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:47:58,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:47:58,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:47:58,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:47:58,962 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:47:58,982 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2021-10-21 19:47:58,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:47:58,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-21 19:47:58,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:47:58,993 INFO L225 Difference]: With dead ends: 58 [2021-10-21 19:47:58,994 INFO L226 Difference]: Without dead ends: 27 [2021-10-21 19:47:58,997 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:47:59,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-21 19:47:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-21 19:47:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2021-10-21 19:47:59,054 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2021-10-21 19:47:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:47:59,054 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2021-10-21 19:47:59,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:47:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-10-21 19:47:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:47:59,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:47:59,056 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:47:59,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:47:59,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:47:59,289 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:47:59,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:47:59,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2021-10-21 19:47:59,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:47:59,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46694752] [2021-10-21 19:47:59,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:47:59,293 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:47:59,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:47:59,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:47:59,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:47:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:47:59,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:47:59,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:48:00,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:48:00,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:48:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:48:00,734 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:48:00,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46694752] [2021-10-21 19:48:00,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46694752] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:48:00,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:48:00,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 19:48:00,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414187866] [2021-10-21 19:48:00,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:48:00,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:48:00,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:48:00,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:48:00,740 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:48:02,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:48:02,125 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2021-10-21 19:48:02,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:48:02,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-21 19:48:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:48:02,127 INFO L225 Difference]: With dead ends: 32 [2021-10-21 19:48:02,127 INFO L226 Difference]: Without dead ends: 12 [2021-10-21 19:48:02,129 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 326.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:48:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-21 19:48:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-21 19:48:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2021-10-21 19:48:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-10-21 19:48:02,141 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2021-10-21 19:48:02,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:48:02,142 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-10-21 19:48:02,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:48:02,142 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-10-21 19:48:02,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:48:02,145 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:48:02,145 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:02,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:48:02,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:48:02,346 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:48:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:48:02,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2021-10-21 19:48:02,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:48:02,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600466509] [2021-10-21 19:48:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:48:02,349 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:48:02,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:48:02,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:48:02,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:48:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:48:03,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:48:03,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:48:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:48:03,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:48:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:48:23,393 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:48:23,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600466509] [2021-10-21 19:48:23,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600466509] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:48:23,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:48:23,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-21 19:48:23,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191200381] [2021-10-21 19:48:23,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:48:23,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:48:23,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:48:23,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:48:23,397 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:48:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:48:24,172 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-10-21 19:48:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:48:24,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 [2021-10-21 19:48:24,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:48:24,173 INFO L225 Difference]: With dead ends: 12 [2021-10-21 19:48:24,173 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:48:24,174 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 9880.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:48:24,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:48:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:48:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:48:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:48:24,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-21 19:48:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:48:24,175 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:48:24,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:48:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:48:24,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:48:24,179 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:48:24,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:48:24,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:48:24,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:48:24,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:48:24,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:48:24,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:48:24,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:48:24,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:48:24,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:48:25,170 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 109) no Hoare annotation was computed. [2021-10-21 19:48:25,171 INFO L857 garLoopResultBuilder]: For program point L126(lines 126 129) no Hoare annotation was computed. [2021-10-21 19:48:25,171 INFO L860 garLoopResultBuilder]: At program point L131(lines 115 132) the Hoare annotation is: true [2021-10-21 19:48:25,171 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:48:25,171 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-21 19:48:25,172 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:48:25,172 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:48:25,172 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2021-10-21 19:48:25,172 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-21 19:48:25,172 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-10-21 19:48:25,173 INFO L857 garLoopResultBuilder]: For program point L70(lines 70 86) no Hoare annotation was computed. [2021-10-21 19:48:25,173 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 103) no Hoare annotation was computed. [2021-10-21 19:48:25,173 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:48:25,173 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 54 58) no Hoare annotation was computed. [2021-10-21 19:48:25,173 INFO L853 garLoopResultBuilder]: At program point L54-2(lines 54 58) the Hoare annotation is: false [2021-10-21 19:48:25,174 INFO L853 garLoopResultBuilder]: At program point L108(lines 34 110) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)))) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x)) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-21 19:48:25,174 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 78) no Hoare annotation was computed. [2021-10-21 19:48:25,174 INFO L857 garLoopResultBuilder]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2021-10-21 19:48:25,175 INFO L853 garLoopResultBuilder]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x)) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-21 19:48:25,175 INFO L857 garLoopResultBuilder]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2021-10-21 19:48:25,175 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2021-10-21 19:48:25,175 INFO L853 garLoopResultBuilder]: At program point L63-2(lines 63 67) the Hoare annotation is: false [2021-10-21 19:48:25,175 INFO L857 garLoopResultBuilder]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2021-10-21 19:48:25,176 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 59) no Hoare annotation was computed. [2021-10-21 19:48:25,176 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 59) no Hoare annotation was computed. [2021-10-21 19:48:25,176 INFO L853 garLoopResultBuilder]: At program point L113(line 113) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)))) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x)) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-10-21 19:48:25,176 INFO L857 garLoopResultBuilder]: For program point L80(lines 80 85) no Hoare annotation was computed. [2021-10-21 19:48:25,177 INFO L857 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-10-21 19:48:25,177 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 108) no Hoare annotation was computed. [2021-10-21 19:48:25,177 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed. [2021-10-21 19:48:25,184 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:48:25,194 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,195 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,199 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,199 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,199 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,200 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,200 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,200 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,201 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,201 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,201 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,202 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,207 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,207 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,208 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,208 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,208 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,208 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,209 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,209 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,210 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,211 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,211 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,212 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,212 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,212 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,213 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,213 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,213 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,213 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,214 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,214 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,214 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,215 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,216 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,216 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,216 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,216 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,217 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,217 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,217 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,218 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,218 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,218 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,220 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,220 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,220 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,221 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,221 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,222 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:48:25 BoogieIcfgContainer [2021-10-21 19:48:25,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:48:25,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:48:25,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:48:25,224 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:48:25,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:47:57" (3/4) ... [2021-10-21 19:48:25,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:48:25,243 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-21 19:48:25,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:48:25,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:48:25,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:48:25,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-21 19:48:25,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-21 19:48:25,277 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-10-21 19:48:25,313 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:48:25,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:48:25,315 INFO L168 Benchmark]: Toolchain (without parser) took 46278.09 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.6 MB in the beginning and 45.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:25,316 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:48:25,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.35 ms. Allocated memory is still 58.7 MB. Free memory was 38.4 MB in the beginning and 25.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:25,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.84 ms. Allocated memory is still 58.7 MB. Free memory was 25.5 MB in the beginning and 41.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:25,318 INFO L168 Benchmark]: Boogie Preprocessor took 98.30 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 39.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:25,319 INFO L168 Benchmark]: RCFGBuilder took 17831.61 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 39.3 MB in the beginning and 56.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:25,319 INFO L168 Benchmark]: TraceAbstraction took 27559.85 ms. Allocated memory is still 75.5 MB. Free memory was 56.2 MB in the beginning and 49.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:25,320 INFO L168 Benchmark]: Witness Printer took 90.38 ms. Allocated memory is still 75.5 MB. Free memory was 49.3 MB in the beginning and 45.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:25,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.35 ms. Allocated memory is still 58.7 MB. Free memory was 38.4 MB in the beginning and 25.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.84 ms. Allocated memory is still 58.7 MB. Free memory was 25.5 MB in the beginning and 41.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.30 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 39.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 17831.61 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 39.3 MB in the beginning and 56.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27559.85 ms. Allocated memory is still 75.5 MB. Free memory was 56.2 MB in the beginning and 49.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * Witness Printer took 90.38 ms. Allocated memory is still 75.5 MB. Free memory was 49.3 MB in the beginning and 45.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 127]: 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, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27443.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 39.8ms, AutomataDifference: 2222.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 789.7ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 52 SDtfs, 33 SDslu, 19 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1614.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 10207.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 51.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 141 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 88.6ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 691.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 60.5ms SsaConstructionTime, 1997.3ms SatisfiabilityAnalysisTime, 21353.1ms InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 427 SizeOfPredicates, 17 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant [2021-10-21 19:48:25,341 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,342 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant [2021-10-21 19:48:25,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,350 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,351 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,351 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,351 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,351 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,352 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,352 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,352 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,352 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,353 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,354 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,355 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,355 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,355 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,355 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,356 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,356 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,356 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,356 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,357 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 38]: Loop Invariant [2021-10-21 19:48:25,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,358 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:48:25,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:48:25,359 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-10-21 19:48:25,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53aeda69-7dfd-488f-817f-799557d4f6ee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...