./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G --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 00450c2a22750cd5421841873b924792a96c2bad91f10ba20116646568f64e1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:52:24,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:52:24,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:52:24,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:52:24,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:52:24,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:52:24,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:52:24,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:52:24,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:52:24,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:52:24,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:52:24,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:52:24,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:52:24,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:52:24,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:52:24,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:52:24,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:52:24,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:52:24,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:52:24,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:52:24,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:52:24,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:52:24,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:52:24,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:52:24,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:52:24,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:52:24,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:52:24,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:52:24,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:52:24,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:52:24,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:52:24,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:52:24,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:52:24,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:52:24,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:52:24,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:52:24,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:52:24,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:52:24,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:52:24,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:52:24,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:52:24,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:52:24,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:52:24,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:52:24,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:52:24,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:52:24,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:52:24,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:52:24,502 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:52:24,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:52:24,503 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:52:24,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:52:24,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:52:24,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:52:24,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:52:24,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:52:24,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:52:24,506 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:52:24,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:52:24,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:52:24,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:52:24,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:52:24,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:52:24,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:52:24,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:52:24,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:52:24,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:52:24,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:52:24,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:52:24,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:52:24,510 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:52:24,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:52:24,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:52:24,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:52:24,513 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_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00450c2a22750cd5421841873b924792a96c2bad91f10ba20116646568f64e1c [2021-11-23 13:52:24,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:52:24,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:52:24,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:52:24,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:52:24,961 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:52:24,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2021-11-23 13:52:25,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/9e43a55c3/3007599c65d74860a154f471438fb2e0/FLAGeee3ce2e2 [2021-11-23 13:52:25,759 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:52:25,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2021-11-23 13:52:25,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/9e43a55c3/3007599c65d74860a154f471438fb2e0/FLAGeee3ce2e2 [2021-11-23 13:52:26,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/9e43a55c3/3007599c65d74860a154f471438fb2e0 [2021-11-23 13:52:26,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:52:26,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:52:26,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:52:26,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:52:26,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:52:26,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c068f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26, skipping insertion in model container [2021-11-23 13:52:26,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:52:26,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:52:26,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c[4369,4382] [2021-11-23 13:52:26,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:52:26,432 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:52:26,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c[4369,4382] [2021-11-23 13:52:26,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:52:26,500 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:52:26,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26 WrapperNode [2021-11-23 13:52:26,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:52:26,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:52:26,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:52:26,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:52:26,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,560 INFO L137 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 301 [2021-11-23 13:52:26,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:52:26,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:52:26,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:52:26,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:52:26,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:52:26,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:52:26,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:52:26,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:52:26,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (1/1) ... [2021-11-23 13:52:26,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:52:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:52:26,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:52:26,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:52:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:52:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:52:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:52:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 13:52:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:52:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 13:52:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:52:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:52:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:52:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:52:26,898 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:52:26,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:52:27,359 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:52:27,369 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:52:27,375 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 13:52:27,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:27 BoogieIcfgContainer [2021-11-23 13:52:27,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:52:27,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:52:27,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:52:27,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:52:27,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:52:26" (1/3) ... [2021-11-23 13:52:27,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b896ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:52:27, skipping insertion in model container [2021-11-23 13:52:27,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:26" (2/3) ... [2021-11-23 13:52:27,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b896ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:52:27, skipping insertion in model container [2021-11-23 13:52:27,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:27" (3/3) ... [2021-11-23 13:52:27,391 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490a.c [2021-11-23 13:52:27,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:52:27,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:52:27,494 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:52:27,503 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 [2021-11-23 13:52:27,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:52:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 71 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 13:52:27,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:52:27,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:52:27,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:52:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:52:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1036075531, now seen corresponding path program 1 times [2021-11-23 13:52:27,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:52:27,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598636217] [2021-11-23 13:52:27,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:52:27,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:52:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:52:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:52:27,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:52:27,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598636217] [2021-11-23 13:52:27,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598636217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:52:27,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:52:27,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:52:27,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161620239] [2021-11-23 13:52:27,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:52:27,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:52:27,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:52:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:52:27,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:52:27,786 INFO L87 Difference]: Start difference. First operand has 72 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 71 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:27,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:52:27,818 INFO L93 Difference]: Finished difference Result 142 states and 234 transitions. [2021-11-23 13:52:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:52:27,821 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 13:52:27,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:52:27,832 INFO L225 Difference]: With dead ends: 142 [2021-11-23 13:52:27,833 INFO L226 Difference]: Without dead ends: 69 [2021-11-23 13:52:27,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:52:27,841 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:52:27,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:52:27,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-23 13:52:27,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-23 13:52:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2021-11-23 13:52:27,893 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 10 [2021-11-23 13:52:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:52:27,894 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2021-11-23 13:52:27,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2021-11-23 13:52:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:52:27,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:52:27,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:52:27,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:52:27,897 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:52:27,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:52:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1299231666, now seen corresponding path program 1 times [2021-11-23 13:52:27,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:52:27,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718482956] [2021-11-23 13:52:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:52:27,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:52:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:52:27,967 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:52:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:52:28,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:52:28,068 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:52:28,071 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:52:28,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:52:28,078 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 13:52:28,082 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:52:28,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:52:28 BoogieIcfgContainer [2021-11-23 13:52:28,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:52:28,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:52:28,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:52:28,147 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:52:28,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:27" (3/4) ... [2021-11-23 13:52:28,151 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:52:28,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:52:28,155 INFO L158 Benchmark]: Toolchain (without parser) took 2064.44ms. Allocated memory was 107.0MB in the beginning and 140.5MB in the end (delta: 33.6MB). Free memory was 74.8MB in the beginning and 92.2MB in the end (delta: -17.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2021-11-23 13:52:28,155 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:52:28,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.89ms. Allocated memory is still 107.0MB. Free memory was 74.5MB in the beginning and 77.9MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:52:28,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.84ms. Allocated memory is still 107.0MB. Free memory was 77.9MB in the beginning and 75.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:52:28,165 INFO L158 Benchmark]: Boogie Preprocessor took 68.08ms. Allocated memory is still 107.0MB. Free memory was 75.1MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:52:28,166 INFO L158 Benchmark]: RCFGBuilder took 747.82ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 55.2MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 13:52:28,167 INFO L158 Benchmark]: TraceAbstraction took 764.41ms. Allocated memory was 107.0MB in the beginning and 140.5MB in the end (delta: 33.6MB). Free memory was 54.9MB in the beginning and 92.7MB in the end (delta: -37.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:52:28,168 INFO L158 Benchmark]: Witness Printer took 5.75ms. Allocated memory is still 140.5MB. Free memory was 92.7MB in the beginning and 92.2MB in the end (delta: 503.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:52:28,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.89ms. Allocated memory is still 107.0MB. Free memory was 74.5MB in the beginning and 77.9MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.84ms. Allocated memory is still 107.0MB. Free memory was 77.9MB in the beginning and 75.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.08ms. Allocated memory is still 107.0MB. Free memory was 75.1MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 747.82ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 55.2MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 764.41ms. Allocated memory was 107.0MB in the beginning and 140.5MB in the end (delta: 33.6MB). Free memory was 54.9MB in the beginning and 92.7MB in the end (delta: -37.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.75ms. Allocated memory is still 140.5MB. Free memory was 92.7MB in the beginning and 92.2MB in the end (delta: 503.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 175]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 89, overapproximation of bitwiseAnd at line 103, overapproximation of someBinaryArithmeticFLOAToperation at line 170. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L86-L93] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L170] float x = 1.0f / 0.0f; [L171] CALL, EXPR __ieee754_acosf(x) [L96] float z, p, q, r, w, s, c, df; [L97] __int32_t hx, ix; VAL [\old(x)=4294967303, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967303] [L99] ieee_float_shape_type gf_u; [L100] gf_u.value = (x) [L101] EXPR gf_u.word [L101] (hx) = gf_u.word [L103] ix = hx & 0x7fffffff VAL [\old(x)=4294967303, hx=6, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967303] [L104] COND TRUE ix == 0x3f800000 VAL [\old(x)=4294967303, hx=6, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967303] [L105] COND TRUE hx > 0 [L106] return 0.0; VAL [\old(x)=4294967303, \result=0, hx=6, ix=1065353216, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967303] [L171] RET, EXPR __ieee754_acosf(x) [L171] float res = __ieee754_acosf(x); [L174] CALL, EXPR isnan_float(res) [L15] return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L174] RET, EXPR isnan_float(res) [L174] COND TRUE !isnan_float(res) [L175] reach_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967303] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 99 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 13:52:28,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G --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 00450c2a22750cd5421841873b924792a96c2bad91f10ba20116646568f64e1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:52:31,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:52:31,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:52:31,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:52:31,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:52:31,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:52:31,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:52:31,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:52:31,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:52:31,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:52:31,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:52:31,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:52:31,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:52:31,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:52:31,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:52:31,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:52:31,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:52:31,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:52:31,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:52:31,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:52:31,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:52:31,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:52:31,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:52:31,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:52:31,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:52:31,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:52:31,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:52:31,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:52:31,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:52:31,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:52:31,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:52:31,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:52:31,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:52:31,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:52:31,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:52:31,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:52:31,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:52:31,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:52:31,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:52:31,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:52:31,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:52:31,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 13:52:31,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:52:31,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:52:31,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:52:31,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:52:31,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:52:31,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:52:31,295 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:52:31,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:52:31,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:52:31,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:52:31,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:52:31,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:52:31,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:52:31,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:52:31,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:52:31,298 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 13:52:31,298 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 13:52:31,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:52:31,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:52:31,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:52:31,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:52:31,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:52:31,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:52:31,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:52:31,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:52:31,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:52:31,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:52:31,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:52:31,302 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 13:52:31,302 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 13:52:31,302 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:52:31,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:52:31,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:52:31,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:52:31,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 13:52:31,303 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_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00450c2a22750cd5421841873b924792a96c2bad91f10ba20116646568f64e1c [2021-11-23 13:52:31,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:52:31,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:52:31,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:52:31,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:52:31,824 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:52:31,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2021-11-23 13:52:31,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/b05c178ce/70a4c1525da1409183239b4e8f81d46e/FLAGe51edf5fa [2021-11-23 13:52:32,504 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:52:32,505 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2021-11-23 13:52:32,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/b05c178ce/70a4c1525da1409183239b4e8f81d46e/FLAGe51edf5fa [2021-11-23 13:52:32,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/data/b05c178ce/70a4c1525da1409183239b4e8f81d46e [2021-11-23 13:52:32,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:52:32,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:52:32,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:52:32,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:52:32,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:52:32,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:52:32" (1/1) ... [2021-11-23 13:52:32,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262578e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:32, skipping insertion in model container [2021-11-23 13:52:32,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:52:32" (1/1) ... [2021-11-23 13:52:32,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:52:32,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:52:33,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c[4369,4382] [2021-11-23 13:52:33,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:52:33,090 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:52:33,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c[4369,4382] [2021-11-23 13:52:33,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:52:33,236 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:52:33,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33 WrapperNode [2021-11-23 13:52:33,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:52:33,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:52:33,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:52:33,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:52:33,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,342 INFO L137 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 301 [2021-11-23 13:52:33,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:52:33,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:52:33,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:52:33,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:52:33,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:52:33,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:52:33,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:52:33,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:52:33,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (1/1) ... [2021-11-23 13:52:33,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:52:33,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:52:33,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:52:33,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:52:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:52:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 13:52:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:52:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 13:52:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 13:52:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:52:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:52:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 13:52:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 13:52:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:52:33,702 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:52:33,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:52:45,295 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:52:45,305 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:52:45,305 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 13:52:45,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:45 BoogieIcfgContainer [2021-11-23 13:52:45,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:52:45,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:52:45,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:52:45,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:52:45,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:52:32" (1/3) ... [2021-11-23 13:52:45,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1c8532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:52:45, skipping insertion in model container [2021-11-23 13:52:45,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:33" (2/3) ... [2021-11-23 13:52:45,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1c8532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:52:45, skipping insertion in model container [2021-11-23 13:52:45,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:45" (3/3) ... [2021-11-23 13:52:45,318 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490a.c [2021-11-23 13:52:45,325 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:52:45,326 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:52:45,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:52:45,394 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 [2021-11-23 13:52:45,394 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:52:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 71 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 13:52:45,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:52:45,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:52:45,423 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:52:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:52:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1036075531, now seen corresponding path program 1 times [2021-11-23 13:52:45,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:52:45,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972948064] [2021-11-23 13:52:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:52:45,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:52:45,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:52:45,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:52:45,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 13:52:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:52:46,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 13:52:46,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:52:46,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:52:46,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:52:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:52:46,383 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:52:46,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972948064] [2021-11-23 13:52:46,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972948064] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:52:46,385 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:52:46,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 13:52:46,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391532331] [2021-11-23 13:52:46,389 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:52:46,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:52:46,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:52:46,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:52:46,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:52:46,451 INFO L87 Difference]: Start difference. First operand has 72 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 71 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:46,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:52:46,483 INFO L93 Difference]: Finished difference Result 142 states and 234 transitions. [2021-11-23 13:52:46,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:52:46,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 13:52:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:52:46,501 INFO L225 Difference]: With dead ends: 142 [2021-11-23 13:52:46,501 INFO L226 Difference]: Without dead ends: 69 [2021-11-23 13:52:46,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:52:46,510 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:52:46,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:52:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-23 13:52:46,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-23 13:52:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2021-11-23 13:52:46,559 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 10 [2021-11-23 13:52:46,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:52:46,560 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2021-11-23 13:52:46,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2021-11-23 13:52:46,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:52:46,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:52:46,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:52:46,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:52:46,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:52:46,786 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:52:46,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:52:46,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1299231666, now seen corresponding path program 1 times [2021-11-23 13:52:46,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:52:46,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333262081] [2021-11-23 13:52:46,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:52:46,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:52:46,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:52:46,791 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:52:46,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 13:52:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:52:47,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:52:47,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:52:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:52:47,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:52:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:52:48,500 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:52:48,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333262081] [2021-11-23 13:52:48,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333262081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:52:48,501 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:52:48,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:52:48,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516697652] [2021-11-23 13:52:48,502 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:52:48,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:52:48,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:52:48,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:52:48,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:52:48,505 INFO L87 Difference]: Start difference. First operand 69 states and 96 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:51,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:52:54,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:52:54,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:52:54,114 INFO L93 Difference]: Finished difference Result 79 states and 104 transitions. [2021-11-23 13:52:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:52:54,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 13:52:54,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:52:54,242 INFO L225 Difference]: With dead ends: 79 [2021-11-23 13:52:54,243 INFO L226 Difference]: Without dead ends: 73 [2021-11-23 13:52:54,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:52:54,246 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 5 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:52:54,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 506 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 2 Unknown, 17 Unchecked, 5.6s Time] [2021-11-23 13:52:54,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-23 13:52:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-11-23 13:52:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 67 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2021-11-23 13:52:54,261 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 11 [2021-11-23 13:52:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:52:54,261 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-11-23 13:52:54,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:52:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2021-11-23 13:52:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:52:54,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:52:54,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:52:54,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:52:54,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:52:54,478 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:52:54,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:52:54,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1092362962, now seen corresponding path program 1 times [2021-11-23 13:52:54,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:52:54,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981547505] [2021-11-23 13:52:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:52:54,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:52:54,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:52:54,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:52:54,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 13:52:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:52:55,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:52:55,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:52:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:52:56,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:52:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:52:56,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:52:56,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981547505] [2021-11-23 13:52:56,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981547505] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:52:56,774 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:52:56,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-23 13:52:56,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913813869] [2021-11-23 13:52:56,774 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:52:56,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:52:56,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:52:56,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:52:56,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:52:56,777 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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) [2021-11-23 13:53:00,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:53:03,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:53:06,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:53:08,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:53:12,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:53:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:53:13,111 INFO L93 Difference]: Finished difference Result 78 states and 101 transitions. [2021-11-23 13:53:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:53:13,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 [2021-11-23 13:53:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:53:13,119 INFO L225 Difference]: With dead ends: 78 [2021-11-23 13:53:13,119 INFO L226 Difference]: Without dead ends: 73 [2021-11-23 13:53:13,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:53:13,122 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 110 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-11-23 13:53:13,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 506 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 5 Unknown, 0 Unchecked, 15.8s Time] [2021-11-23 13:53:13,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-23 13:53:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-11-23 13:53:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:53:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2021-11-23 13:53:13,144 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 11 [2021-11-23 13:53:13,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:53:13,145 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2021-11-23 13:53:13,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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) [2021-11-23 13:53:13,146 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2021-11-23 13:53:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:53:13,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:53:13,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:53:13,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:53:13,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:53:13,361 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:53:13,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:53:13,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1011451795, now seen corresponding path program 1 times [2021-11-23 13:53:13,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:53:13,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55988517] [2021-11-23 13:53:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:53:13,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:53:13,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:53:13,364 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:53:13,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 13:53:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:53:13,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:53:13,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:53:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:53:14,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:53:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:53:15,184 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:53:15,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55988517] [2021-11-23 13:53:15,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55988517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:53:15,185 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:53:15,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:53:15,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816190446] [2021-11-23 13:53:15,185 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:53:15,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:53:15,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:53:15,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:53:15,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:53:15,187 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:53:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:53:15,206 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2021-11-23 13:53:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:53:15,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 13:53:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:53:15,208 INFO L225 Difference]: With dead ends: 68 [2021-11-23 13:53:15,208 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:53:15,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:53:15,211 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:53:15,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-11-23 13:53:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:53:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:53:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:53:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:53:15,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-23 13:53:15,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:53:15,222 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:53:15,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:53:15,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:53:15,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:53:15,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:53:15,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:53:15,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:53:15,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:53:15,884 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-23 13:53:15,884 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2021-11-23 13:53:15,884 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:53:15,885 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2021-11-23 13:53:15,885 INFO L858 garLoopResultBuilder]: For program point L70-3(lines 70 73) no Hoare annotation was computed. [2021-11-23 13:53:15,885 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 111) no Hoare annotation was computed. [2021-11-23 13:53:15,885 INFO L854 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2021-11-23 13:53:15,886 INFO L858 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2021-11-23 13:53:15,886 INFO L854 garLoopResultBuilder]: At program point L55-6(lines 55 64) the Hoare annotation is: false [2021-11-23 13:53:15,886 INFO L858 garLoopResultBuilder]: For program point L55-7(lines 19 84) no Hoare annotation was computed. [2021-11-23 13:53:15,886 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 108) no Hoare annotation was computed. [2021-11-23 13:53:15,887 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2021-11-23 13:53:15,887 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2021-11-23 13:53:15,887 INFO L858 garLoopResultBuilder]: For program point L40-3(lines 40 44) no Hoare annotation was computed. [2021-11-23 13:53:15,887 INFO L858 garLoopResultBuilder]: For program point L40-5(lines 40 44) no Hoare annotation was computed. [2021-11-23 13:53:15,888 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2021-11-23 13:53:15,888 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2021-11-23 13:53:15,888 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2021-11-23 13:53:15,888 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: false [2021-11-23 13:53:15,889 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-11-23 13:53:15,889 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2021-11-23 13:53:15,889 INFO L858 garLoopResultBuilder]: For program point L57-5(lines 57 61) no Hoare annotation was computed. [2021-11-23 13:53:15,889 INFO L858 garLoopResultBuilder]: For program point L24-5(lines 24 28) no Hoare annotation was computed. [2021-11-23 13:53:15,890 INFO L854 garLoopResultBuilder]: At program point L24-6(lines 24 28) the Hoare annotation is: false [2021-11-23 13:53:15,890 INFO L858 garLoopResultBuilder]: For program point L24-7(lines 24 28) no Hoare annotation was computed. [2021-11-23 13:53:15,890 INFO L858 garLoopResultBuilder]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2021-11-23 13:53:15,890 INFO L854 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2021-11-23 13:53:15,890 INFO L858 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2021-11-23 13:53:15,891 INFO L858 garLoopResultBuilder]: For program point L41-7(lines 41 42) no Hoare annotation was computed. [2021-11-23 13:53:15,891 INFO L854 garLoopResultBuilder]: At program point L41-8(lines 41 42) the Hoare annotation is: false [2021-11-23 13:53:15,891 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:53:15,891 INFO L858 garLoopResultBuilder]: For program point L41-9(lines 41 42) no Hoare annotation was computed. [2021-11-23 13:53:15,892 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 161) no Hoare annotation was computed. [2021-11-23 13:53:15,892 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 177) no Hoare annotation was computed. [2021-11-23 13:53:15,892 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 141 145) no Hoare annotation was computed. [2021-11-23 13:53:15,892 INFO L854 garLoopResultBuilder]: At program point L141-2(lines 141 145) the Hoare annotation is: false [2021-11-23 13:53:15,893 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-23 13:53:15,893 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 111) no Hoare annotation was computed. [2021-11-23 13:53:15,893 INFO L854 garLoopResultBuilder]: At program point L160(lines 95 162) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_acosf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_acosf_#res#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:53:15,894 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:53:15,894 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-23 13:53:15,894 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2021-11-23 13:53:15,894 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2021-11-23 13:53:15,894 INFO L858 garLoopResultBuilder]: For program point L78-5(lines 78 82) no Hoare annotation was computed. [2021-11-23 13:53:15,895 INFO L854 garLoopResultBuilder]: At program point L78-6(lines 78 82) the Hoare annotation is: false [2021-11-23 13:53:15,895 INFO L858 garLoopResultBuilder]: For program point L78-7(lines 78 82) no Hoare annotation was computed. [2021-11-23 13:53:15,895 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 161) no Hoare annotation was computed. [2021-11-23 13:53:15,895 INFO L861 garLoopResultBuilder]: At program point L179(lines 164 180) the Hoare annotation is: true [2021-11-23 13:53:15,895 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 150) no Hoare annotation was computed. [2021-11-23 13:53:15,895 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 114) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L146-1(lines 136 161) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L146-2(lines 146 150) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L47-3(lines 47 48) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L47-5(lines 47 48) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-23 13:53:15,896 INFO L858 garLoopResultBuilder]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2021-11-23 13:53:15,897 INFO L854 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_acosf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_acosf_#res#1|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2021-11-23 13:53:15,897 INFO L858 garLoopResultBuilder]: For program point L98-1(lines 98 102) no Hoare annotation was computed. [2021-11-23 13:53:15,897 INFO L854 garLoopResultBuilder]: At program point L98-2(lines 98 102) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:53:15,897 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:53:15,897 INFO L858 garLoopResultBuilder]: For program point L98-3(lines 98 102) no Hoare annotation was computed. [2021-11-23 13:53:15,897 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2021-11-23 13:53:15,898 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2021-11-23 13:53:15,898 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 66 75) no Hoare annotation was computed. [2021-11-23 13:53:15,898 INFO L854 garLoopResultBuilder]: At program point L83(lines 19 84) the Hoare annotation is: false [2021-11-23 13:53:15,898 INFO L854 garLoopResultBuilder]: At program point L83-1(lines 19 84) the Hoare annotation is: false [2021-11-23 13:53:15,899 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-11-23 13:53:15,899 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 34 35) no Hoare annotation was computed. [2021-11-23 13:53:15,899 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2021-11-23 13:53:15,899 INFO L858 garLoopResultBuilder]: For program point L68-2(lines 68 74) no Hoare annotation was computed. [2021-11-23 13:53:15,903 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 13:53:15,905 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:53:15,919 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,920 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,920 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,920 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,921 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,921 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,921 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,921 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,922 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,922 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,922 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,922 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,927 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,927 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,927 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,927 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,928 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,928 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,928 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,928 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,929 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,929 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,929 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,929 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,932 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,932 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,932 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,932 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,933 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,933 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,933 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,933 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,934 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,934 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,934 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,934 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,936 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,937 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,937 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,937 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,937 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,941 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:15,941 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:15,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:15,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:15,943 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:15,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:53:15 BoogieIcfgContainer [2021-11-23 13:53:15,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:53:15,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:53:15,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:53:15,945 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:53:15,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:45" (3/4) ... [2021-11-23 13:53:15,949 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:53:15,967 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-23 13:53:15,968 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 13:53:15,969 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 13:53:15,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 13:53:15,999 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 13:53:16,000 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 13:53:16,001 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-11-23 13:53:16,046 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:53:16,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:53:16,048 INFO L158 Benchmark]: Toolchain (without parser) took 43245.30ms. Allocated memory was 60.8MB in the beginning and 92.3MB in the end (delta: 31.5MB). Free memory was 41.3MB in the beginning and 56.0MB in the end (delta: -14.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2021-11-23 13:53:16,048 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:53:16,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.18ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 42.0MB in the end (delta: -947.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 13:53:16,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.98ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 39.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:53:16,050 INFO L158 Benchmark]: Boogie Preprocessor took 87.37ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 37.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:53:16,050 INFO L158 Benchmark]: RCFGBuilder took 11876.78ms. Allocated memory was 60.8MB in the beginning and 92.3MB in the end (delta: 31.5MB). Free memory was 36.8MB in the beginning and 65.1MB in the end (delta: -28.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-11-23 13:53:16,051 INFO L158 Benchmark]: TraceAbstraction took 30633.52ms. Allocated memory is still 92.3MB. Free memory was 64.4MB in the beginning and 63.1MB in the end (delta: 1.3MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2021-11-23 13:53:16,051 INFO L158 Benchmark]: Witness Printer took 102.14ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 56.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:53:16,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.18ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 42.0MB in the end (delta: -947.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.98ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 39.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.37ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 37.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 11876.78ms. Allocated memory was 60.8MB in the beginning and 92.3MB in the end (delta: 31.5MB). Free memory was 36.8MB in the beginning and 65.1MB in the end (delta: -28.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 30633.52ms. Allocated memory is still 92.3MB. Free memory was 64.4MB in the beginning and 63.1MB in the end (delta: 1.3MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 102.14ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 56.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 175]: 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, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 21.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 1123 SdHoareTripleChecker+Invalid, 20.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 21 IncrementalHoareTripleChecker+Unchecked, 854 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 269 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 19 NumberOfFragments, 116 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 11 QuantifiedInterpolants, 404 SizeOfPredicates, 25 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant [2021-11-23 13:53:16,072 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,073 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,073 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,073 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,073 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,074 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,074 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,074 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,074 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,075 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,075 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,075 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,076 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,076 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,076 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,077 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,077 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,077 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,077 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,078 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,078 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,078 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,078 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,078 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant [2021-11-23 13:53:16,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,082 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,082 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,085 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,085 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 98]: Loop Invariant [2021-11-23 13:53:16,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:16,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:16,088 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:53:16,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:16,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:53:16,088 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 13:53:16,306 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-23 13:53:16,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2234fe9d-6159-4721-b12a-6e3b2dabd5a3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE