./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0 --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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:26:52,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:26:52,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:26:52,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:26:52,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:26:52,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:26:52,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:26:52,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:26:52,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:26:52,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:26:52,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:26:52,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:26:52,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:26:52,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:26:52,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:26:52,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:26:52,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:26:52,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:26:52,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:26:52,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:26:52,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:26:52,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:26:52,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:26:52,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:26:52,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:26:52,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:26:52,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:26:52,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:26:52,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:26:52,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:26:52,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:26:52,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:26:52,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:26:52,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:26:52,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:26:52,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:26:52,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:26:52,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:26:52,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:26:52,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:26:52,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:26:52,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:26:52,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:26:52,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:26:52,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:26:52,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:26:52,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:26:52,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:26:52,382 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:26:52,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:26:52,383 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:26:52,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:26:52,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:26:52,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:26:52,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:26:52,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:26:52,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:26:52,386 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:26:52,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:26:52,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:26:52,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:26:52,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:26:52,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:26:52,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:26:52,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:26:52,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:26:52,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:26:52,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:26:52,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:26:52,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:26:52,389 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:26:52,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:26:52,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:26:52,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:26:52,390 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_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2021-11-22 14:26:52,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:26:52,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:26:52,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:26:52,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:26:52,715 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:26:52,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-22 14:26:52,775 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/1b6f1e60d/6cc8175899f247ec969193c5b8927ffa/FLAGa0a662278 [2021-11-22 14:26:53,241 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:26:53,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-22 14:26:53,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/1b6f1e60d/6cc8175899f247ec969193c5b8927ffa/FLAGa0a662278 [2021-11-22 14:26:53,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/1b6f1e60d/6cc8175899f247ec969193c5b8927ffa [2021-11-22 14:26:53,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:26:53,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:26:53,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:26:53,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:26:53,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:26:53,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:53,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf50d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53, skipping insertion in model container [2021-11-22 14:26:53,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:53,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:26:53,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:26:53,905 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_38162308-5308-4522-80f5-b6312bc193b8/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-22 14:26:53,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:26:53,927 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:26:53,981 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_38162308-5308-4522-80f5-b6312bc193b8/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-22 14:26:53,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:26:53,998 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:26:53,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53 WrapperNode [2021-11-22 14:26:53,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:26:54,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:26:54,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:26:54,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:26:54,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,045 INFO L137 Inliner]: procedures = 19, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-22 14:26:54,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:26:54,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:26:54,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:26:54,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:26:54,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:26:54,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:26:54,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:26:54,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:26:54,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (1/1) ... [2021-11-22 14:26:54,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:26:54,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:26:54,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:26:54,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:26:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:26:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:26:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:26:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-22 14:26:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:26:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-22 14:26:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:26:54,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:26:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:26:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:26:54,333 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:26:54,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:26:54,582 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:26:54,589 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:26:54,589 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-22 14:26:54,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:26:54 BoogieIcfgContainer [2021-11-22 14:26:54,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:26:54,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:26:54,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:26:54,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:26:54,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:26:53" (1/3) ... [2021-11-22 14:26:54,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb68923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:26:54, skipping insertion in model container [2021-11-22 14:26:54,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:53" (2/3) ... [2021-11-22 14:26:54,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb68923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:26:54, skipping insertion in model container [2021-11-22 14:26:54,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:26:54" (3/3) ... [2021-11-22 14:26:54,601 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2021-11-22 14:26:54,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:26:54,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:26:54,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:26:54,683 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 [2021-11-22 14:26:54,687 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:26:54,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-22 14:26:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 14:26:54,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:26:54,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:26:54,737 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:26:54,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:26:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-11-22 14:26:54,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:26:54,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306792331] [2021-11-22 14:26:54,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:26:54,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:26:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:26:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:26:54,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:26:54,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306792331] [2021-11-22 14:26:54,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306792331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:26:54,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:26:54,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:26:54,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700277502] [2021-11-22 14:26:54,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:26:54,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:26:54,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:26:55,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:26:55,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:26:55,012 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-22 14:26:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:26:55,041 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-11-22 14:26:55,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:26:55,043 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 [2021-11-22 14:26:55,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:26:55,052 INFO L225 Difference]: With dead ends: 56 [2021-11-22 14:26:55,053 INFO L226 Difference]: Without dead ends: 26 [2021-11-22 14:26:55,057 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 [2021-11-22 14:26:55,064 INFO L933 BasicCegarLoop]: 39 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, 39 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 [2021-11-22 14:26:55,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:26:55,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-22 14:26:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-22 14:26:55,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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) [2021-11-22 14:26:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-22 14:26:55,134 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-11-22 14:26:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:26:55,134 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-22 14:26:55,134 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) [2021-11-22 14:26:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-22 14:26:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:26:55,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:26:55,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:26:55,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:26:55,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:26:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:26:55,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-11-22 14:26:55,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:26:55,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931479814] [2021-11-22 14:26:55,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:26:55,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:26:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:26:55,243 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:26:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:26:55,339 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:26:55,339 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 14:26:55,344 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:26:55,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:26:55,361 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 14:26:55,365 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:26:55,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:26:55 BoogieIcfgContainer [2021-11-22 14:26:55,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:26:55,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:26:55,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:26:55,426 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:26:55,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:26:54" (3/4) ... [2021-11-22 14:26:55,430 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 14:26:55,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:26:55,432 INFO L158 Benchmark]: Toolchain (without parser) took 1810.37ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 73.2MB in the beginning and 116.9MB in the end (delta: -43.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:26:55,433 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:26:55,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.63ms. Allocated memory is still 111.1MB. Free memory was 73.0MB in the beginning and 82.4MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:26:55,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.52ms. Allocated memory is still 111.1MB. Free memory was 82.4MB in the beginning and 80.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:26:55,438 INFO L158 Benchmark]: Boogie Preprocessor took 61.15ms. Allocated memory is still 111.1MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:26:55,441 INFO L158 Benchmark]: RCFGBuilder took 483.51ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 66.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 14:26:55,442 INFO L158 Benchmark]: TraceAbstraction took 832.10ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 66.0MB in the beginning and 116.9MB in the end (delta: -50.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:26:55,442 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 146.8MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:26:55,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.63ms. Allocated memory is still 111.1MB. Free memory was 73.0MB in the beginning and 82.4MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.52ms. Allocated memory is still 111.1MB. Free memory was 82.4MB in the beginning and 80.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.15ms. Allocated memory is still 111.1MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.51ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 66.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 832.10ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 66.0MB in the beginning and 116.9MB in the end (delta: -50.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 146.8MB. Free memory is still 116.9MB. 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: 153]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] double x = -1.0 / 0.0; [L149] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [\old(x)=18014398509481987, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481987, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [\old(x)=18014398509481987, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481987, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [\old(x)=18014398509481987, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L149] RET, EXPR __ieee754_log(x) [L149] double res = __ieee754_log(x); [L152] CALL, EXPR isnan_double(res) [L139] return x != x; VAL [\old(x)=18014398509481986, \result=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481986, zero=0] [L152] RET, EXPR isnan_double(res) [L152] COND TRUE !isnan_double(res) [L153] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=18014398509481986, two54_log=18014398509481984, x=18014398509481987, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 39 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, 39 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=29occurred 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 [2021-11-22 14:26:55,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/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_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0 --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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:26:57,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:26:57,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:26:57,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:26:57,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:26:57,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:26:57,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:26:57,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:26:57,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:26:58,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:26:58,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:26:58,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:26:58,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:26:58,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:26:58,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:26:58,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:26:58,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:26:58,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:26:58,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:26:58,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:26:58,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:26:58,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:26:58,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:26:58,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:26:58,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:26:58,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:26:58,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:26:58,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:26:58,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:26:58,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:26:58,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:26:58,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:26:58,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:26:58,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:26:58,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:26:58,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:26:58,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:26:58,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:26:58,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:26:58,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:26:58,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:26:58,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 14:26:58,089 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:26:58,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:26:58,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:26:58,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:26:58,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:26:58,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:26:58,092 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:26:58,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:26:58,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:26:58,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:26:58,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:26:58,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:26:58,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:26:58,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:26:58,093 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 14:26:58,093 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 14:26:58,093 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 14:26:58,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:26:58,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:26:58,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:26:58,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:26:58,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:26:58,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:26:58,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:26:58,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:26:58,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:26:58,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:26:58,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:26:58,096 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 14:26:58,096 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 14:26:58,096 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:26:58,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:26:58,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:26:58,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:26:58,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 14:26:58,097 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_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2021-11-22 14:26:58,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:26:58,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:26:58,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:26:58,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:26:58,512 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:26:58,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-22 14:26:58,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/4fcf89d2e/fd3de6b7783c46ef9aa64c799359ae0f/FLAG5e81d2143 [2021-11-22 14:26:59,228 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:26:59,229 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-22 14:26:59,239 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/4fcf89d2e/fd3de6b7783c46ef9aa64c799359ae0f/FLAG5e81d2143 [2021-11-22 14:26:59,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/data/4fcf89d2e/fd3de6b7783c46ef9aa64c799359ae0f [2021-11-22 14:26:59,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:26:59,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:26:59,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:26:59,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:26:59,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:26:59,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:26:59,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26921940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59, skipping insertion in model container [2021-11-22 14:26:59,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:26:59,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:26:59,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:26:59,847 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_38162308-5308-4522-80f5-b6312bc193b8/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-22 14:26:59,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:26:59,875 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:26:59,923 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_38162308-5308-4522-80f5-b6312bc193b8/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-22 14:26:59,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:26:59,942 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:26:59,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59 WrapperNode [2021-11-22 14:26:59,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:26:59,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:26:59,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:26:59,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:26:59,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:26:59,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,003 INFO L137 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-22 14:27:00,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:27:00,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:27:00,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:27:00,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:27:00,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:27:00,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:27:00,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:27:00,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:27:00,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (1/1) ... [2021-11-22 14:27:00,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:27:00,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:27:00,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:27:00,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:27:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:27:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-22 14:27:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-22 14:27:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 14:27:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:27:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 14:27:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:27:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:27:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 14:27:00,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:27:00,310 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:27:00,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:27:26,713 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:27:26,720 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:27:26,720 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-22 14:27:26,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:26 BoogieIcfgContainer [2021-11-22 14:27:26,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:27:26,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:27:26,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:27:26,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:27:26,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:26:59" (1/3) ... [2021-11-22 14:27:26,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1ee10a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:27:26, skipping insertion in model container [2021-11-22 14:27:26,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:59" (2/3) ... [2021-11-22 14:27:26,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1ee10a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:27:26, skipping insertion in model container [2021-11-22 14:27:26,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:26" (3/3) ... [2021-11-22 14:27:26,733 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2021-11-22 14:27:26,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:27:26,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:27:26,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:27:26,797 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 [2021-11-22 14:27:26,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:27:26,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-22 14:27:26,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 14:27:26,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:27:26,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:27:26,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:27:26,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:27:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-11-22 14:27:26,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:27:26,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719424911] [2021-11-22 14:27:26,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:27:26,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:27:26,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:27:26,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:27:26,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 14:27:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:27:27,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 14:27:27,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:27:28,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:27:28,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:27:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:27:28,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:27:28,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719424911] [2021-11-22 14:27:28,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719424911] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:27:28,221 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:27:28,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 14:27:28,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582894282] [2021-11-22 14:27:28,224 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:27:28,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:27:28,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:27:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:27:28,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:27:28,259 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-22 14:27:28,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:27:28,277 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-11-22 14:27:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:27:28,280 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 [2021-11-22 14:27:28,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:27:28,289 INFO L225 Difference]: With dead ends: 56 [2021-11-22 14:27:28,289 INFO L226 Difference]: Without dead ends: 26 [2021-11-22 14:27:28,293 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 [2021-11-22 14:27:28,297 INFO L933 BasicCegarLoop]: 39 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, 39 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 [2021-11-22 14:27:28,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:27:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-22 14:27:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-22 14:27:28,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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) [2021-11-22 14:27:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-22 14:27:28,331 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-11-22 14:27:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:27:28,332 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-22 14:27:28,332 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) [2021-11-22 14:27:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-22 14:27:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:27:28,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:27:28,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:27:28,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 14:27:28,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:27:28,550 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:27:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:27:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-11-22 14:27:28,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:27:28,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092129765] [2021-11-22 14:27:28,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:27:28,553 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:27:28,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:27:28,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:27:28,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 14:27:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:27:29,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 14:27:29,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:27:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:27:30,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:27:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:27:31,388 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:27:31,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092129765] [2021-11-22 14:27:31,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092129765] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:27:31,389 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:27:31,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 14:27:31,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400802694] [2021-11-22 14:27:31,390 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:27:31,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:27:31,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:27:31,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:27:31,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:27:31,393 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-22 14:27:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:27:31,406 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-11-22 14:27:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:27:31,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 [2021-11-22 14:27:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:27:31,408 INFO L225 Difference]: With dead ends: 31 [2021-11-22 14:27:31,408 INFO L226 Difference]: Without dead ends: 26 [2021-11-22 14:27:31,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:27:31,411 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:27:31,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2021-11-22 14:27:31,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-22 14:27:31,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-22 14:27:31,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 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) [2021-11-22 14:27:31,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-11-22 14:27:31,419 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2021-11-22 14:27:31,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:27:31,419 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-11-22 14:27:31,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-22 14:27:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-22 14:27:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:27:31,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:27:31,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:27:31,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:27:31,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:27:31,626 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:27:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:27:31,626 INFO L85 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2021-11-22 14:27:31,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:27:31,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423544528] [2021-11-22 14:27:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:27:31,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:27:31,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:27:31,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:27:31,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 14:27:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:27:31,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 14:27:31,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:27:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:27:32,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:27:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:27:33,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:27:33,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423544528] [2021-11-22 14:27:33,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423544528] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:27:33,096 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:27:33,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 14:27:33,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854033743] [2021-11-22 14:27:33,097 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:27:33,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:27:33,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:27:33,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:27:33,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:27:33,099 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-11-22 14:27:33,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:27:33,107 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2021-11-22 14:27:33,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:27:33,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 [2021-11-22 14:27:33,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:27:33,109 INFO L225 Difference]: With dead ends: 42 [2021-11-22 14:27:33,109 INFO L226 Difference]: Without dead ends: 26 [2021-11-22 14:27:33,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:27:33,112 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:27:33,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-11-22 14:27:33,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-22 14:27:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-22 14:27:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 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) [2021-11-22 14:27:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-11-22 14:27:33,119 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 11 [2021-11-22 14:27:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:27:33,120 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-11-22 14:27:33,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-11-22 14:27:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2021-11-22 14:27:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 14:27:33,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:27:33,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:27:33,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:27:33,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:27:33,330 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:27:33,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:27:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2021-11-22 14:27:33,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:27:33,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004226179] [2021-11-22 14:27:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:27:33,331 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:27:33,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:27:33,335 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:27:33,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 14:27:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:27:34,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 14:27:34,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:27:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:27:35,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:27:42,524 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log_~x#1| |c_ULTIMATE.start___ieee754_log_~x#1|) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from false [2021-11-22 14:27:44,719 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log_~x#1| |c_ULTIMATE.start___ieee754_log_~x#1|) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from true [2021-11-22 14:28:06,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:06,151 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:28:06,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004226179] [2021-11-22 14:28:06,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004226179] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:28:06,151 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:28:06,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-22 14:28:06,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859924441] [2021-11-22 14:28:06,152 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:28:06,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:28:06,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:28:06,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:28:06,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=54, Unknown=2, NotChecked=14, Total=90 [2021-11-22 14:28:06,154 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:08,585 WARN L860 $PredicateComparison]: unable to prove that (and (= (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (_ +zero 11 53)) |c_ULTIMATE.start___ieee754_log_~x#1|) (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log_~x#1| |c_ULTIMATE.start___ieee754_log_~x#1|) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= (_ +zero 11 53) c_~zero~0) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-22 14:28:12,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:15,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:17,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:20,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:22,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:24,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:26,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:28,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:30,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:33,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:35,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:37,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:39,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:42,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:44,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:28:44,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:28:44,128 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-11-22 14:28:44,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:28:44,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 14:28:44,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:28:44,186 INFO L225 Difference]: With dead ends: 31 [2021-11-22 14:28:44,186 INFO L226 Difference]: Without dead ends: 26 [2021-11-22 14:28:44,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=35, Invalid=80, Unknown=3, NotChecked=38, Total=156 [2021-11-22 14:28:44,188 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 4 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:28:44,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 124 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 15 Unknown, 51 Unchecked, 35.3s Time] [2021-11-22 14:28:44,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-22 14:28:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-22 14:28:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-22 14:28:44,194 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 12 [2021-11-22 14:28:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:28:44,194 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-22 14:28:44,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:44,194 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-22 14:28:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 14:28:44,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:28:44,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:28:44,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:28:44,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:28:44,422 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:28:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:28:44,422 INFO L85 PathProgramCache]: Analyzing trace with hash -74218210, now seen corresponding path program 1 times [2021-11-22 14:28:44,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:28:44,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727390052] [2021-11-22 14:28:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:28:44,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:28:44,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:28:44,424 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:28:44,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 14:28:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:28:44,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 14:28:44,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:28:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:46,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:28:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:46,945 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:28:46,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727390052] [2021-11-22 14:28:46,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727390052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:28:46,946 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:28:46,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 14:28:46,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753106921] [2021-11-22 14:28:46,946 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:28:46,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:28:46,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:28:46,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:28:46,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:28:46,948 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-11-22 14:28:46,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:28:46,982 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2021-11-22 14:28:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:28:46,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 15 [2021-11-22 14:28:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:28:46,987 INFO L225 Difference]: With dead ends: 26 [2021-11-22 14:28:46,987 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 14:28:46,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:28:46,989 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:28:46,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2021-11-22 14:28:46,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 14:28:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 14:28:46,991 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) [2021-11-22 14:28:46,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 14:28:46,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-22 14:28:46,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:28:46,991 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:28:46,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-11-22 14:28:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:28:46,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 14:28:47,003 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:28:47,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 14:28:47,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:28:47,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 14:28:47,873 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-11-22 14:28:47,873 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-11-22 14:28:47,873 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-11-22 14:28:47,874 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-22 14:28:47,874 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-11-22 14:28:47,874 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= |ULTIMATE.start___ieee754_log_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)))) [2021-11-22 14:28:47,875 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 14:28:47,875 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 14:28:47,875 INFO L858 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-11-22 14:28:47,875 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 14:28:47,875 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 155) no Hoare annotation was computed. [2021-11-22 14:28:47,876 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-11-22 14:28:47,876 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-11-22 14:28:47,876 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-11-22 14:28:47,876 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-11-22 14:28:47,877 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-11-22 14:28:47,877 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-11-22 14:28:47,877 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 14:28:47,877 INFO L861 garLoopResultBuilder]: At program point L157(lines 141 158) the Hoare annotation is: true [2021-11-22 14:28:47,878 INFO L854 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (= |ULTIMATE.start___ieee754_log_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) [2021-11-22 14:28:47,878 INFO L858 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-11-22 14:28:47,878 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-11-22 14:28:47,878 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-11-22 14:28:47,879 INFO L854 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-11-22 14:28:47,879 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-11-22 14:28:47,879 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-11-22 14:28:47,879 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-11-22 14:28:47,880 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-11-22 14:28:47,880 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-11-22 14:28:47,884 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-22 14:28:47,886 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:28:47,896 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,901 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,903 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,903 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,904 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,904 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,904 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,905 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,905 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,906 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,906 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,906 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,906 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,906 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,907 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,907 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,908 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,908 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,908 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,908 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,909 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,909 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,910 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,910 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,910 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,910 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:47,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:28:47 BoogieIcfgContainer [2021-11-22 14:28:47,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:28:47,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:28:47,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:28:47,913 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:28:47,913 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:26" (3/4) ... [2021-11-22 14:28:47,917 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 14:28:47,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-22 14:28:47,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-22 14:28:47,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 14:28:47,933 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 14:28:47,960 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) [2021-11-22 14:28:47,961 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) [2021-11-22 14:28:47,987 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:28:47,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:28:47,988 INFO L158 Benchmark]: Toolchain (without parser) took 108413.73ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.2MB in the beginning and 33.9MB in the end (delta: 298.7kB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-22 14:28:47,989 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:28:47,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.64ms. Allocated memory is still 56.6MB. Free memory was 34.0MB in the beginning and 35.9MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 14:28:47,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.39ms. Allocated memory is still 56.6MB. Free memory was 35.9MB in the beginning and 33.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:28:47,990 INFO L158 Benchmark]: Boogie Preprocessor took 65.34ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 32.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:28:47,991 INFO L158 Benchmark]: RCFGBuilder took 26644.78ms. Allocated memory is still 56.6MB. Free memory was 31.9MB in the beginning and 30.6MB in the end (delta: 1.3MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2021-11-22 14:28:47,991 INFO L158 Benchmark]: TraceAbstraction took 81186.72ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.2MB in the beginning and 38.9MB in the end (delta: -8.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-11-22 14:28:47,992 INFO L158 Benchmark]: Witness Printer took 75.16ms. Allocated memory is still 69.2MB. Free memory was 38.5MB in the beginning and 33.9MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 14:28:47,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.64ms. Allocated memory is still 56.6MB. Free memory was 34.0MB in the beginning and 35.9MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.39ms. Allocated memory is still 56.6MB. Free memory was 35.9MB in the beginning and 33.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.34ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 32.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 26644.78ms. Allocated memory is still 56.6MB. Free memory was 31.9MB in the beginning and 30.6MB in the end (delta: 1.3MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 81186.72ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.2MB in the beginning and 38.9MB in the end (delta: -8.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 75.16ms. Allocated memory is still 69.2MB. Free memory was 38.5MB in the beginning and 33.9MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 * 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: 153]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 81.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 38.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 35.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 370 SdHoareTripleChecker+Invalid, 34.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 97 IncrementalHoareTripleChecker+Unchecked, 236 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 134 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 65 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 37 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 37.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 108 ConstructedInterpolants, 22 QuantifiedInterpolants, 775 SizeOfPredicates, 33 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant [2021-11-22 14:28:48,023 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,024 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant [2021-11-22 14:28:48,025 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,025 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,025 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,025 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,026 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,027 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,027 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,028 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,028 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,028 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,028 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,028 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: 1bv32 == \result && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant [2021-11-22 14:28:48,029 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,029 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,030 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,030 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,030 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,036 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,037 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,037 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,038 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,038 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,038 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 14:28:48,038 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-22 14:28:48,248 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-22 14:28:48,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38162308-5308-4522-80f5-b6312bc193b8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE