./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF --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 6d3233ccb864b75538f8fed6a586b5cbac020cb4ad9bbb5d5357658307afa1e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:05:53,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:05:53,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:05:53,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:05:53,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:05:53,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:05:53,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:05:53,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:05:53,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:05:53,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:05:53,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:05:53,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:05:53,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:05:53,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:05:53,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:05:53,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:05:53,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:05:53,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:05:53,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:05:53,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:05:53,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:05:53,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:05:53,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:05:53,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:05:53,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:05:53,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:05:53,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:05:53,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:05:53,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:05:53,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:05:53,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:05:53,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:05:53,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:05:53,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:05:53,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:05:53,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:05:53,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:05:53,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:05:53,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:05:53,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:05:53,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:05:53,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:05:53,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:05:53,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:05:53,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:05:53,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:05:53,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:05:53,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:05:53,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:05:53,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:05:53,551 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:05:53,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:05:53,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:05:53,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:05:53,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:05:53,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:05:53,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:05:53,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:05:53,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:05:53,553 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:05:53,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:05:53,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:05:53,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:05:53,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:05:53,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:05:53,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:05:53,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:05:53,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:05:53,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:05:53,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:05:53,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:05:53,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:05:53,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:05:53,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:05:53,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:05:53,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:05:53,557 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_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d3233ccb864b75538f8fed6a586b5cbac020cb4ad9bbb5d5357658307afa1e5 [2021-11-20 06:05:53,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:05:53,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:05:53,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:05:53,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:05:53,858 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:05:53,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c [2021-11-20 06:05:53,918 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/2600f5501/18b330e4ae574ab686cee48311b93892/FLAG61c7beee9 [2021-11-20 06:05:54,355 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:05:54,356 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c [2021-11-20 06:05:54,375 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/2600f5501/18b330e4ae574ab686cee48311b93892/FLAG61c7beee9 [2021-11-20 06:05:54,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/2600f5501/18b330e4ae574ab686cee48311b93892 [2021-11-20 06:05:54,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:05:54,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:05:54,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:05:54,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:05:54,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:05:54,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:54" (1/1) ... [2021-11-20 06:05:54,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6d1599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:54, skipping insertion in model container [2021-11-20 06:05:54,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:54" (1/1) ... [2021-11-20 06:05:54,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:05:54,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:05:54,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[1997,2010] [2021-11-20 06:05:54,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[2366,2379] [2021-11-20 06:05:55,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:05:55,032 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:05:55,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[1997,2010] [2021-11-20 06:05:55,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[2366,2379] [2021-11-20 06:05:55,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:05:55,134 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:05:55,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55 WrapperNode [2021-11-20 06:05:55,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:05:55,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:05:55,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:05:55,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:05:55,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,185 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2021-11-20 06:05:55,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:05:55,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:05:55,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:05:55,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:05:55,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:05:55,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:05:55,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:05:55,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:05:55,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (1/1) ... [2021-11-20 06:05:55,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:05:55,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:05:55,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:05:55,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:05:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:05:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-11-20 06:05:55,321 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-11-20 06:05:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:05:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:05:55,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:05:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 06:05:55,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 06:05:55,387 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:05:55,388 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:05:55,620 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:05:55,628 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:05:55,628 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:05:55,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:55 BoogieIcfgContainer [2021-11-20 06:05:55,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:05:55,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:05:55,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:05:55,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:05:55,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:05:54" (1/3) ... [2021-11-20 06:05:55,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad0974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:55, skipping insertion in model container [2021-11-20 06:05:55,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:55" (2/3) ... [2021-11-20 06:05:55,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad0974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:55, skipping insertion in model container [2021-11-20 06:05:55,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:55" (3/3) ... [2021-11-20 06:05:55,639 INFO L111 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_3a.c.cil.c [2021-11-20 06:05:55,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:05:55,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 06:05:55,694 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:05:55,714 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:05:55,714 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 06:05:55,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 06:05:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:05:55,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:05:55,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:05:55,742 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:05:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:05:55,767 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-11-20 06:05:55,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:05:55,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690859057] [2021-11-20 06:05:55,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:05:55,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:05:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:05:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:05:55,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:05:55,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690859057] [2021-11-20 06:05:55,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690859057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:05:55,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:05:55,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:05:55,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253391630] [2021-11-20 06:05:55,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:05:55,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:05:55,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:05:56,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:05:56,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:05:56,011 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:05:56,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:05:56,061 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2021-11-20 06:05:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:05:56,064 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-20 06:05:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:05:56,085 INFO L225 Difference]: With dead ends: 115 [2021-11-20 06:05:56,089 INFO L226 Difference]: Without dead ends: 51 [2021-11-20 06:05:56,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:05:56,100 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:05:56,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:05:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-20 06:05:56,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-20 06:05:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:05:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2021-11-20 06:05:56,179 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2021-11-20 06:05:56,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:05:56,179 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2021-11-20 06:05:56,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:05:56,180 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2021-11-20 06:05:56,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:05:56,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:05:56,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:05:56,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:05:56,182 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:05:56,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:05:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-11-20 06:05:56,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:05:56,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450076645] [2021-11-20 06:05:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:05:56,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:05:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:05:56,216 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:05:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:05:56,277 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:05:56,277 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:05:56,280 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-20 06:05:56,283 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-20 06:05:56,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:05:56,288 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 06:05:56,292 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:05:56,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:05:56 BoogieIcfgContainer [2021-11-20 06:05:56,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:05:56,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:05:56,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:05:56,327 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:05:56,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:55" (3/4) ... [2021-11-20 06:05:56,331 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:05:56,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:05:56,334 INFO L158 Benchmark]: Toolchain (without parser) took 1616.28ms. Allocated memory is still 151.0MB. Free memory was 109.6MB in the beginning and 79.2MB in the end (delta: 30.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2021-11-20 06:05:56,334 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:05:56,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.07ms. Allocated memory is still 151.0MB. Free memory was 109.4MB in the beginning and 120.4MB in the end (delta: -11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:05:56,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.61ms. Allocated memory is still 151.0MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:05:56,339 INFO L158 Benchmark]: Boogie Preprocessor took 47.08ms. Allocated memory is still 151.0MB. Free memory was 119.1MB in the beginning and 117.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:05:56,343 INFO L158 Benchmark]: RCFGBuilder took 396.13ms. Allocated memory is still 151.0MB. Free memory was 117.7MB in the beginning and 103.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:05:56,343 INFO L158 Benchmark]: TraceAbstraction took 692.89ms. Allocated memory is still 151.0MB. Free memory was 103.0MB in the beginning and 79.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-20 06:05:56,344 INFO L158 Benchmark]: Witness Printer took 5.35ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 79.2MB in the end (delta: 719.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:05:56,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.07ms. Allocated memory is still 151.0MB. Free memory was 109.4MB in the beginning and 120.4MB in the end (delta: -11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.61ms. Allocated memory is still 151.0MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.08ms. Allocated memory is still 151.0MB. Free memory was 119.1MB in the beginning and 117.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 396.13ms. Allocated memory is still 151.0MB. Free memory was 117.7MB in the beginning and 103.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 692.89ms. Allocated memory is still 151.0MB. Free memory was 103.0MB in the beginning and 79.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.35ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 79.2MB in the end (delta: 719.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.399f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 06:05:56,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF --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 6d3233ccb864b75538f8fed6a586b5cbac020cb4ad9bbb5d5357658307afa1e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:05:58,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:05:58,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:05:58,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:05:58,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:05:58,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:05:58,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:05:58,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:05:58,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:05:58,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:05:58,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:05:58,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:05:58,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:05:58,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:05:58,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:05:58,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:05:58,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:05:58,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:05:58,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:05:58,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:05:58,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:05:58,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:05:58,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:05:58,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:05:58,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:05:58,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:05:58,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:05:58,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:05:58,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:05:58,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:05:58,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:05:58,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:05:58,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:05:58,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:05:58,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:05:58,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:05:58,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:05:58,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:05:58,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:05:58,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:05:58,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:05:58,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 06:05:58,954 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:05:58,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:05:58,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:05:58,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:05:58,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:05:58,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:05:58,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:05:58,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:05:58,957 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:05:58,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:05:58,957 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:05:58,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:05:58,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:05:58,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:05:58,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:05:58,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:05:58,958 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:05:58,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:05:58,959 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:05:58,959 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:05:58,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:05:58,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:05:58,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:05:58,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:05:58,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:05:58,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:05:58,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:05:58,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:05:58,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:05:58,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:05:58,961 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:05:58,961 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:05:58,962 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:05:58,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:05:58,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:05:58,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:05:58,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:05:58,963 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_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d3233ccb864b75538f8fed6a586b5cbac020cb4ad9bbb5d5357658307afa1e5 [2021-11-20 06:05:59,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:05:59,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:05:59,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:05:59,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:05:59,421 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:05:59,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c [2021-11-20 06:05:59,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/16dc4bae0/9720f1eb20794c75905065a8f1e4c52d/FLAGc97db8b84 [2021-11-20 06:06:00,086 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:06:00,087 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c [2021-11-20 06:06:00,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/16dc4bae0/9720f1eb20794c75905065a8f1e4c52d/FLAGc97db8b84 [2021-11-20 06:06:00,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/data/16dc4bae0/9720f1eb20794c75905065a8f1e4c52d [2021-11-20 06:06:00,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:06:00,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:06:00,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:00,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:06:00,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:06:00,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc9c7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00, skipping insertion in model container [2021-11-20 06:06:00,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:06:00,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:06:00,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[1997,2010] [2021-11-20 06:06:00,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[2366,2379] [2021-11-20 06:06:00,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:00,743 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:06:00,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[1997,2010] [2021-11-20 06:06:00,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/sv-benchmarks/c/combinations/square_6+soft_float_3a.c.cil.c[2366,2379] [2021-11-20 06:06:00,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:00,802 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:06:00,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00 WrapperNode [2021-11-20 06:06:00,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:00,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:00,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:06:00,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:06:00,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,862 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2021-11-20 06:06:00,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:00,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:06:00,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:06:00,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:06:00,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:06:00,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:06:00,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:06:00,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:06:00,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (1/1) ... [2021-11-20 06:06:00,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:06:00,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:00,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:01,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:06:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:06:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:06:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-11-20 06:06:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-11-20 06:06:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:06:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:06:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 06:06:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 06:06:01,118 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:06:01,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:06:03,718 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:06:03,726 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:06:03,726 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:06:03,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:03 BoogieIcfgContainer [2021-11-20 06:06:03,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:06:03,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:06:03,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:06:03,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:06:03,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:06:00" (1/3) ... [2021-11-20 06:06:03,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725e2373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:06:03, skipping insertion in model container [2021-11-20 06:06:03,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:00" (2/3) ... [2021-11-20 06:06:03,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725e2373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:06:03, skipping insertion in model container [2021-11-20 06:06:03,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:03" (3/3) ... [2021-11-20 06:06:03,736 INFO L111 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_3a.c.cil.c [2021-11-20 06:06:03,741 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:06:03,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 06:06:03,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:06:03,795 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:06:03,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 06:06:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 06:06:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:06:03,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:03,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:03,816 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:03,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:03,821 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-11-20 06:06:03,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:06:03,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188692188] [2021-11-20 06:06:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:03,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:06:03,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:06:03,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:06:03,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:06:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:04,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 06:06:04,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:04,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:06:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:04,461 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:06:04,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188692188] [2021-11-20 06:06:04,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188692188] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:04,462 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:04,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 06:06:04,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12797544] [2021-11-20 06:06:04,465 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:04,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:06:04,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:06:04,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:06:04,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:06:04,507 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:06:04,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:04,548 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2021-11-20 06:06:04,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:06:04,550 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-20 06:06:04,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:06:04,557 INFO L225 Difference]: With dead ends: 115 [2021-11-20 06:06:04,558 INFO L226 Difference]: Without dead ends: 51 [2021-11-20 06:06:04,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:06:04,564 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:06:04,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:06:04,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-20 06:06:04,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-20 06:06:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:06:04,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2021-11-20 06:06:04,607 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2021-11-20 06:06:04,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:06:04,607 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2021-11-20 06:06:04,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:06:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2021-11-20 06:06:04,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:06:04,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:04,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:04,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:04,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:06:04,817 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:04,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:04,818 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-11-20 06:06:04,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:06:04,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945362125] [2021-11-20 06:06:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:04,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:06:04,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:06:04,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:06:04,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167c4265-c10e-461f-8516-ad325f830487/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:18:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:18:54,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:18:54,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:19:10,180 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= |c_ULTIMATE.start_main1_~result~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-20 06:20:00,546 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)))) (or (not (fp.geq .cse0 (_ +zero 8 24))) (not (fp.lt .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1399.0 1000.0)))))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse1)))) is different from false [2021-11-20 06:20:02,595 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)))) (or (not (fp.geq .cse0 (_ +zero 8 24))) (not (fp.lt .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1399.0 1000.0)))))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse1)))) is different from true [2021-11-20 06:20:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:20:02,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:20:13,332 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)))) (and (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (fp.geq .cse0 (_ +zero 8 24)))) is different from false [2021-11-20 06:20:15,405 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)))) (and (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (fp.geq .cse0 (_ +zero 8 24)))) is different from true [2021-11-20 06:20:30,256 WARN L838 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)))) (and (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (fp.geq .cse0 (_ +zero 8 24))))) is different from false [2021-11-20 06:20:32,330 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|) |c_ULTIMATE.start_main1_~IN~0#1|)))) (and (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (fp.geq .cse0 (_ +zero 8 24))))) is different from true