./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f ................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:34:37,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:34:37,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:34:37,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:34:37,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:34:37,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:34:37,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:34:37,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:34:37,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:34:37,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:34:37,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:34:37,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:34:37,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:34:37,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:34:37,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:34:37,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:34:37,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:34:37,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:34:37,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:34:37,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:34:37,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:34:37,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:34:37,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:34:37,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:34:37,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:34:37,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:34:37,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:34:37,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:34:37,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:34:37,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:34:37,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:34:37,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:34:37,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:34:37,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:34:37,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:34:37,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:34:37,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:34:37,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:34:37,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:34:37,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:34:37,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:34:37,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:34:37,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:34:37,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:34:37,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:34:37,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:34:37,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:34:37,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:34:37,964 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:34:37,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:34:37,964 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:34:37,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:34:37,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:34:37,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:34:37,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:34:37,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:34:37,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:34:37,966 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:34:37,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:34:37,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:34:37,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:34:37,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:34:37,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:34:37,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:34:37,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:34:37,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:34:37,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:34:37,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:34:37,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:34:37,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:34:37,969 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:34:37,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:34:37,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:34:37,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:34:37,969 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_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f [2021-10-21 19:34:38,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:34:38,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:34:38,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:34:38,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:34:38,329 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:34:38,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-10-21 19:34:38,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/2072f9d7b/15d957de4cc34bcc89c64c5e1d56e1fc/FLAG38ea992ea [2021-10-21 19:34:38,959 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:34:38,960 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-10-21 19:34:38,974 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/2072f9d7b/15d957de4cc34bcc89c64c5e1d56e1fc/FLAG38ea992ea [2021-10-21 19:34:39,324 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/2072f9d7b/15d957de4cc34bcc89c64c5e1d56e1fc [2021-10-21 19:34:39,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:34:39,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:34:39,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:39,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:34:39,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:34:39,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127a38e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39, skipping insertion in model container [2021-10-21 19:34:39,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:34:39,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:34:39,565 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/sv-benchmarks/c/float-newlib/float_req_bl_1031.c[1571,1584] [2021-10-21 19:34:39,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:39,577 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:34:39,599 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/sv-benchmarks/c/float-newlib/float_req_bl_1031.c[1571,1584] [2021-10-21 19:34:39,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:39,613 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:34:39,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39 WrapperNode [2021-10-21 19:34:39,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:39,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:34:39,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:34:39,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:34:39,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:34:39,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:34:39,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:34:39,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:34:39,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:34:39,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:34:39,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:34:39,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:34:39,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (1/1) ... [2021-10-21 19:34:39,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:34:39,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:34:39,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:34:39,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:34:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:34:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:34:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 19:34:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:34:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 19:34:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:34:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:34:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:34:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:34:40,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:34:40,010 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-21 19:34:40,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:40 BoogieIcfgContainer [2021-10-21 19:34:40,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:34:40,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:34:40,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:34:40,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:34:40,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:34:39" (1/3) ... [2021-10-21 19:34:40,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372f14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:34:40, skipping insertion in model container [2021-10-21 19:34:40,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:39" (2/3) ... [2021-10-21 19:34:40,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372f14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:34:40, skipping insertion in model container [2021-10-21 19:34:40,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:40" (3/3) ... [2021-10-21 19:34:40,021 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2021-10-21 19:34:40,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:34:40,027 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:34:40,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:34:40,083 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:34:40,083 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:34:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:40,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:34:40,104 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:40,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:40,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:34:40,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:40,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2021-10-21 19:34:40,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:34:40,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718756098] [2021-10-21 19:34:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:40,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:34:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:40,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:34:40,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718756098] [2021-10-21 19:34:40,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718756098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:40,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:40,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:34:40,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190919947] [2021-10-21 19:34:40,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:34:40,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:34:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:34:40,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:34:40,387 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) [2021-10-21 19:34:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:40,409 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2021-10-21 19:34:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:34:40,410 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 [2021-10-21 19:34:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:40,421 INFO L225 Difference]: With dead ends: 40 [2021-10-21 19:34:40,422 INFO L226 Difference]: Without dead ends: 18 [2021-10-21 19:34:40,427 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:34:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-21 19:34:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-21 19:34:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 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) [2021-10-21 19:34:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-10-21 19:34:40,460 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2021-10-21 19:34:40,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:40,461 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-10-21 19:34:40,461 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) [2021-10-21 19:34:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-10-21 19:34:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:34:40,463 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:40,463 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:40,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:34:40,465 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:34:40,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:40,471 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2021-10-21 19:34:40,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:34:40,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516313449] [2021-10-21 19:34:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:40,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:34:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:34:40,575 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:34:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:34:40,679 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:34:40,680 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:34:40,682 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:34:40,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:34:40,691 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:34:40,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:34:40 BoogieIcfgContainer [2021-10-21 19:34:40,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:34:40,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:34:40,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:34:40,725 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:34:40,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:40" (3/4) ... [2021-10-21 19:34:40,730 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:34:40,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:34:40,733 INFO L168 Benchmark]: Toolchain (without parser) took 1403.22 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 67.2 MB in the beginning and 64.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:40,733 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:40,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.72 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 66.9 MB in the beginning and 102.7 MB in the end (delta: -35.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:40,738 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.86 ms. Allocated memory is still 127.9 MB. Free memory was 102.7 MB in the beginning and 100.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:40,744 INFO L168 Benchmark]: Boogie Preprocessor took 39.99 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 99.8 MB in the end (delta: 830.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:40,744 INFO L168 Benchmark]: RCFGBuilder took 320.05 ms. Allocated memory is still 127.9 MB. Free memory was 99.8 MB in the beginning and 88.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:40,745 INFO L168 Benchmark]: TraceAbstraction took 709.04 ms. Allocated memory is still 127.9 MB. Free memory was 88.1 MB in the beginning and 64.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:40,745 INFO L168 Benchmark]: Witness Printer took 5.67 ms. Allocated memory is still 127.9 MB. Free memory is still 64.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:40,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.72 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 66.9 MB in the beginning and 102.7 MB in the end (delta: -35.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.86 ms. Allocated memory is still 127.9 MB. Free memory was 102.7 MB in the beginning and 100.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.99 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 99.8 MB in the end (delta: 830.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 320.05 ms. Allocated memory is still 127.9 MB. Free memory was 99.8 MB in the beginning and 88.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 709.04 ms. Allocated memory is still 127.9 MB. Free memory was 88.1 MB in the beginning and 64.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.67 ms. Allocated memory is still 127.9 MB. Free memory is still 64.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 72]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 24. Possible FailurePath: [L67] float x = 0.0f / 0.0f; [L14] __uint32_t w; [L16] int exponent_less_127; [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (w) = gf_u.word [L24] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L26] COND FALSE !(exponent_less_127 < 23) [L42] COND TRUE exponent_less_127 == 128 [L44] return x + x; [L68] float res = round_float(x); [L57] return x != x; [L71] COND TRUE !isnan_float(res) [L72] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 616.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.4ms, AutomataDifference: 62.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.1ms SsaConstructionTime, 133.1ms SatisfiabilityAnalysisTime, 79.5ms 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 [2021-10-21 19:34:40,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:34:43,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:34:43,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:34:43,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:34:43,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:34:43,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:34:43,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:34:43,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:34:43,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:34:43,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:34:43,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:34:43,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:34:43,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:34:43,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:34:43,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:34:43,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:34:43,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:34:43,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:34:43,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:34:43,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:34:43,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:34:43,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:34:43,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:34:43,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:34:43,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:34:43,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:34:43,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:34:43,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:34:43,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:34:43,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:34:43,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:34:43,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:34:43,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:34:43,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:34:43,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:34:43,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:34:43,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:34:43,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:34:43,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:34:43,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:34:43,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:34:43,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:34:43,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:34:43,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:34:43,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:34:43,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:34:43,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:34:43,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:34:43,485 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:34:43,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:34:43,486 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:34:43,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:34:43,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:34:43,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:34:43,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:34:43,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:34:43,488 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:34:43,488 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:34:43,489 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:34:43,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:34:43,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:34:43,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:34:43,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:34:43,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:34:43,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:34:43,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:34:43,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:34:43,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:34:43,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:34:43,492 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:34:43,492 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:34:43,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:34:43,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:34:43,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:34:43,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:34:43,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:34:43,493 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_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f [2021-10-21 19:34:43,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:34:43,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:34:43,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:34:43,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:34:43,935 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:34:43,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-10-21 19:34:44,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/d1531ca82/97a06e6ad2e8432dacba228b7650298a/FLAG21cf0ef9b [2021-10-21 19:34:44,579 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:34:44,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-10-21 19:34:44,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/d1531ca82/97a06e6ad2e8432dacba228b7650298a/FLAG21cf0ef9b [2021-10-21 19:34:44,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/data/d1531ca82/97a06e6ad2e8432dacba228b7650298a [2021-10-21 19:34:44,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:34:44,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:34:44,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:44,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:34:44,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:34:44,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:44" (1/1) ... [2021-10-21 19:34:44,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6162d27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:44, skipping insertion in model container [2021-10-21 19:34:44,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:44" (1/1) ... [2021-10-21 19:34:44,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:34:44,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:34:45,088 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/sv-benchmarks/c/float-newlib/float_req_bl_1031.c[1571,1584] [2021-10-21 19:34:45,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:45,104 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:34:45,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/sv-benchmarks/c/float-newlib/float_req_bl_1031.c[1571,1584] [2021-10-21 19:34:45,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:45,190 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:34:45,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45 WrapperNode [2021-10-21 19:34:45,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:45,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:34:45,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:34:45,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:34:45,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:34:45,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:34:45,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:34:45,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:34:45,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:34:45,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:34:45,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:34:45,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:34:45,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (1/1) ... [2021-10-21 19:34:45,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:34:45,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:34:45,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:34:45,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:34:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:34:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:34:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-21 19:34:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:34:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:34:45,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:34:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-21 19:34:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:34:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:34:45,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:34:45,782 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-21 19:34:45,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:45 BoogieIcfgContainer [2021-10-21 19:34:45,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:34:45,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:34:45,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:34:45,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:34:45,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:34:44" (1/3) ... [2021-10-21 19:34:45,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd50c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:34:45, skipping insertion in model container [2021-10-21 19:34:45,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:45" (2/3) ... [2021-10-21 19:34:45,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd50c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:34:45, skipping insertion in model container [2021-10-21 19:34:45,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:45" (3/3) ... [2021-10-21 19:34:45,798 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2021-10-21 19:34:45,804 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:34:45,804 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:34:45,871 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:34:45,881 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:34:45,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:34:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:34:45,912 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:45,913 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:45,913 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:34:45,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:45,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2021-10-21 19:34:45,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:45,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107874911] [2021-10-21 19:34:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:45,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:45,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:45,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:45,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:34:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:46,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:34:46,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:46,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:46,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:46,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107874911] [2021-10-21 19:34:46,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107874911] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:46,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:46,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:34:46,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870298446] [2021-10-21 19:34:46,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:34:46,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:46,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:34:46,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:34:46,235 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) [2021-10-21 19:34:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:46,250 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2021-10-21 19:34:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:34:46,251 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 [2021-10-21 19:34:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:46,260 INFO L225 Difference]: With dead ends: 40 [2021-10-21 19:34:46,261 INFO L226 Difference]: Without dead ends: 18 [2021-10-21 19:34:46,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:34:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-21 19:34:46,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-21 19:34:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 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) [2021-10-21 19:34:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-10-21 19:34:46,294 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2021-10-21 19:34:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:46,294 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-10-21 19:34:46,295 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) [2021-10-21 19:34:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-10-21 19:34:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:34:46,295 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:46,296 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:46,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:34:46,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:34:46,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:34:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:46,510 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2021-10-21 19:34:46,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:46,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81598733] [2021-10-21 19:34:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:46,512 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:46,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:46,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:34:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:46,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:34:46,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:46,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:47,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:47,756 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:47,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81598733] [2021-10-21 19:34:47,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81598733] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:47,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:47,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-21 19:34:47,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831564954] [2021-10-21 19:34:47,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:34:47,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:47,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:34:47,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:34:47,769 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:48,099 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-10-21 19:34:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:34:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-21 19:34:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:48,101 INFO L225 Difference]: With dead ends: 23 [2021-10-21 19:34:48,102 INFO L226 Difference]: Without dead ends: 17 [2021-10-21 19:34:48,103 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 694.4ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:34:48,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-21 19:34:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-21 19:34:48,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-21 19:34:48,107 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2021-10-21 19:34:48,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:48,107 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-21 19:34:48,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:48,108 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-21 19:34:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:34:48,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:48,109 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:48,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 19:34:48,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:34:48,322 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:34:48,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:48,323 INFO L82 PathProgramCache]: Analyzing trace with hash 812423977, now seen corresponding path program 1 times [2021-10-21 19:34:48,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:48,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730064179] [2021-10-21 19:34:48,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:48,324 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:48,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:48,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:48,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:34:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:48,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:34:48,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:48,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:48,851 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:48,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730064179] [2021-10-21 19:34:48,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730064179] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:48,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:48,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:34:48,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81191129] [2021-10-21 19:34:48,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:34:48,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:48,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:34:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:34:48,857 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:48,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:48,986 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-21 19:34:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:34:48,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 [2021-10-21 19:34:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:48,987 INFO L225 Difference]: With dead ends: 17 [2021-10-21 19:34:48,987 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:34:48,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 259.8ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:34:48,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:34:48,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:34:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:48,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:34:48,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-21 19:34:48,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:48,989 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:34:48,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:34:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:34:48,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:34:48,992 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:34:49,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:34:49,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:34:49,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:34:49,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:34:49,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:34:49,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:34:49,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:34:49,305 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 40) no Hoare annotation was computed. [2021-10-21 19:34:49,306 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 52) no Hoare annotation was computed. [2021-10-21 19:34:49,306 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2021-10-21 19:34:49,306 INFO L857 garLoopResultBuilder]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2021-10-21 19:34:49,306 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:34:49,306 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:34:49,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:34:49,307 INFO L853 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-10-21 19:34:49,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2021-10-21 19:34:49,307 INFO L853 garLoopResultBuilder]: At program point L53(lines 13 54) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-21 19:34:49,308 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:34:49,308 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2021-10-21 19:34:49,308 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-10-21 19:34:49,308 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2021-10-21 19:34:49,308 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 36) no Hoare annotation was computed. [2021-10-21 19:34:49,309 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 47) no Hoare annotation was computed. [2021-10-21 19:34:49,309 INFO L857 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-10-21 19:34:49,309 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-21 19:34:49,309 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2021-10-21 19:34:49,309 INFO L860 garLoopResultBuilder]: At program point L76(lines 59 77) the Hoare annotation is: true [2021-10-21 19:34:49,310 INFO L857 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2021-10-21 19:34:49,316 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:34:49,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:34:49,326 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,330 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:34:49,331 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,337 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,337 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,337 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,338 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,338 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,339 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,339 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,339 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,341 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,341 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,341 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:34:49 BoogieIcfgContainer [2021-10-21 19:34:49,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:34:49,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:34:49,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:34:49,348 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:34:49,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:45" (3/4) ... [2021-10-21 19:34:49,352 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:34:49,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-21 19:34:49,366 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-21 19:34:49,366 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:34:49,367 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:34:49,405 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-21 19:34:49,406 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-21 19:34:49,407 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-10-21 19:34:49,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:34:49,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:34:49,443 INFO L168 Benchmark]: Toolchain (without parser) took 4541.62 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 53.6 MB in the beginning and 52.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:49,443 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:49,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.58 ms. Allocated memory is still 69.2 MB. Free memory was 53.5 MB in the beginning and 52.9 MB in the end (delta: 587.1 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:49,445 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.25 ms. Allocated memory is still 69.2 MB. Free memory was 52.9 MB in the beginning and 51.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:49,446 INFO L168 Benchmark]: Boogie Preprocessor took 52.97 ms. Allocated memory is still 69.2 MB. Free memory was 51.2 MB in the beginning and 49.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:49,449 INFO L168 Benchmark]: RCFGBuilder took 478.04 ms. Allocated memory is still 69.2 MB. Free memory was 49.6 MB in the beginning and 38.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:49,450 INFO L168 Benchmark]: TraceAbstraction took 3555.89 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 37.8 MB in the beginning and 55.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:49,451 INFO L168 Benchmark]: Witness Printer took 93.80 ms. Allocated memory is still 104.9 MB. Free memory was 55.0 MB in the beginning and 52.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:49,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.58 ms. Allocated memory is still 69.2 MB. Free memory was 53.5 MB in the beginning and 52.9 MB in the end (delta: 587.1 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.25 ms. Allocated memory is still 69.2 MB. Free memory was 52.9 MB in the beginning and 51.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.97 ms. Allocated memory is still 69.2 MB. Free memory was 51.2 MB in the beginning and 49.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 478.04 ms. Allocated memory is still 69.2 MB. Free memory was 49.6 MB in the beginning and 38.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3555.89 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 37.8 MB in the beginning and 55.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * Witness Printer took 93.80 ms. Allocated memory is still 104.9 MB. Free memory was 55.0 MB in the beginning and 52.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 72]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3446.6ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 21.1ms, AutomataDifference: 510.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 111.7ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 54 SDslu, 68 SDs, 0 SdLazy, 42 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 221.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 954.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 59 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 52.1ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 52.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 47.6ms SsaConstructionTime, 177.8ms SatisfiabilityAnalysisTime, 1684.8ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 5 QuantifiedInterpolants, 310 SizeOfPredicates, 17 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2021-10-21 19:34:49,465 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:34:49,466 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,466 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:34:49,467 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 57]: Loop Invariant [2021-10-21 19:34:49,467 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,475 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,475 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,477 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,478 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,478 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,478 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,478 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 13]: Loop Invariant [2021-10-21 19:34:49,479 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,479 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,480 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,480 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,480 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,480 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,486 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:34:49,487 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:34:49,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050a7fa1-8537-482e-ad14-cab755aae71f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...