./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22.i --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_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/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_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/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_f7d3e616-80c9-4641-a13f-a0a435c7788f/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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:01:31,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:01:31,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:01:31,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:01:31,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:01:31,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:01:31,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:01:31,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:01:31,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:01:31,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:01:31,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:01:31,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:01:31,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:01:31,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:01:31,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:01:31,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:01:31,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:01:31,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:01:31,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:01:31,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:01:31,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:01:31,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:01:31,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:01:31,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:01:31,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:01:31,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:01:31,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:01:31,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:01:31,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:01:31,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:01:31,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:01:31,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:01:31,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:01:31,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:01:31,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:01:31,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:01:31,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:01:31,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:01:31,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:01:31,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:01:31,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:01:31,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:01:31,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:01:31,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:01:31,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:01:31,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:01:31,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:01:31,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:01:31,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:01:31,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:01:31,240 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:01:31,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:01:31,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:01:31,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:01:31,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:01:31,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:01:31,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:01:31,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:01:31,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:01:31,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:01:31,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:01:31,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:01:31,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:01:31,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:01:31,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:01:31,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:01:31,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:01:31,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:01:31,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:01:31,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:01:31,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:01:31,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:01:31,248 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:01:31,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:01:31,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:01:31,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:01:31,249 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-20 06:01:31,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:01:31,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:01:31,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:01:31,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:01:31,545 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:01:31,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-20 06:01:31,678 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/6a92154bb/4f001ee63673426aab7a5c4e285f1f5d/FLAG30291fcd1 [2021-11-20 06:01:32,319 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:01:32,320 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-20 06:01:32,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/6a92154bb/4f001ee63673426aab7a5c4e285f1f5d/FLAG30291fcd1 [2021-11-20 06:01:32,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/6a92154bb/4f001ee63673426aab7a5c4e285f1f5d [2021-11-20 06:01:32,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:01:32,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:01:32,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:01:32,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:01:32,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:01:32,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:32,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71756279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32, skipping insertion in model container [2021-11-20 06:01:32,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:32,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:01:32,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:01:32,886 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-20 06:01:32,893 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-20 06:01:32,894 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-20 06:01:32,897 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-20 06:01:32,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:01:32,930 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:01:32,956 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-20 06:01:32,960 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-20 06:01:32,962 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-20 06:01:32,965 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-20 06:01:32,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:01:32,989 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:01:32,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32 WrapperNode [2021-11-20 06:01:32,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:01:32,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:01:32,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:01:32,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:01:32,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,036 INFO L137 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-11-20 06:01:33,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:01:33,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:01:33,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:01:33,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:01:33,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:01:33,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:01:33,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:01:33,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:01:33,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (1/1) ... [2021-11-20 06:01:33,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:01:33,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:01:33,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:01:33,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:01:33,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:01:33,176 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-20 06:01:33,177 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-20 06:01:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:01:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:01:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 06:01:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:01:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 06:01:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-20 06:01:33,178 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-20 06:01:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:01:33,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:01:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:01:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:01:33,290 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:01:33,292 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:01:33,559 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:01:33,567 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:01:33,567 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:01:33,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:33 BoogieIcfgContainer [2021-11-20 06:01:33,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:01:33,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:01:33,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:01:33,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:01:33,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:01:32" (1/3) ... [2021-11-20 06:01:33,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754e7169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:33, skipping insertion in model container [2021-11-20 06:01:33,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:32" (2/3) ... [2021-11-20 06:01:33,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754e7169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:33, skipping insertion in model container [2021-11-20 06:01:33,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:33" (3/3) ... [2021-11-20 06:01:33,582 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-20 06:01:33,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:01:33,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 06:01:33,701 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:01:33,725 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 06:01:33,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 06:01:33,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 06:01:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 06:01:33,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:33,796 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:33,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:01:33,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-11-20 06:01:33,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:33,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084314476] [2021-11-20 06:01:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:33,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:01:34,062 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:01:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:01:34,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:01:34,212 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:01:34,213 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-20 06:01:34,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-20 06:01:34,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-20 06:01:34,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-20 06:01:34,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:01:34,225 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 06:01:34,229 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:01:34,237 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-20 06:01:34,240 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-20 06:01:34,240 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-20 06:01:34,241 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-20 06:01:34,242 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-20 06:01:34,242 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-20 06:01:34,243 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-20 06:01:34,243 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-20 06:01:34,243 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-20 06:01:34,244 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-20 06:01:34,245 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-20 06:01:34,245 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-20 06:01:34,246 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-20 06:01:34,247 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-20 06:01:34,247 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-20 06:01:34,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-20 06:01:34,248 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-20 06:01:34,248 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-20 06:01:34,248 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-20 06:01:34,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:01:34 BoogieIcfgContainer [2021-11-20 06:01:34,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:01:34,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:01:34,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:01:34,277 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:01:34,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:33" (3/4) ... [2021-11-20 06:01:34,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:01:34,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:01:34,285 INFO L158 Benchmark]: Toolchain (without parser) took 1614.84ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 43.8MB in the beginning and 36.7MB in the end (delta: 7.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2021-11-20 06:01:34,286 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 79.7MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:01:34,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.64ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 43.6MB in the beginning and 77.6MB in the end (delta: -34.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-11-20 06:01:34,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.11ms. Allocated memory is still 98.6MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:01:34,294 INFO L158 Benchmark]: Boogie Preprocessor took 34.98ms. Allocated memory is still 98.6MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:01:34,295 INFO L158 Benchmark]: RCFGBuilder took 497.34ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 58.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 06:01:34,295 INFO L158 Benchmark]: TraceAbstraction took 701.01ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 37.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-20 06:01:34,297 INFO L158 Benchmark]: Witness Printer took 6.58ms. Allocated memory is still 98.6MB. Free memory was 37.2MB in the beginning and 36.7MB in the end (delta: 528.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:01:34,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 79.7MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.64ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 43.6MB in the beginning and 77.6MB in the end (delta: -34.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.11ms. Allocated memory is still 98.6MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.98ms. Allocated memory is still 98.6MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 497.34ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 58.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 701.01ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 37.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 6.58ms. Allocated memory is still 98.6MB. Free memory was 37.2MB in the beginning and 36.7MB in the end (delta: 528.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 130. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; VAL [f1={5:0}, f2={6:0}] [L141] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [\old(index)=0, index=0, unknown-#res!f-unknown=57, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L141] RET, EXPR returnsStructure(0) VAL [f1={5:0}, f2={6:0}, returnsStructure(0)=57returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=0] [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [\old(index)=1, index=1, unknown-#res!f-unknown=59, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L142] RET, EXPR returnsStructure(1) VAL [f1={5:0}, f2={6:0}, returnsStructure(1)=59returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [f1={5:0}, f1.ieee.negative=0, f2={6:0}, f2.ieee.negative=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [f1={5:0}, f2={6:0}] - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: 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, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 06:01:34,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/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_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/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_f7d3e616-80c9-4641-a13f-a0a435c7788f/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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:01:37,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:01:37,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:01:37,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:01:37,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:01:37,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:01:37,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:01:37,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:01:37,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:01:37,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:01:37,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:01:37,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:01:37,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:01:37,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:01:37,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:01:37,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:01:37,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:01:37,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:01:37,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:01:37,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:01:37,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:01:37,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:01:37,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:01:37,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:01:37,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:01:37,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:01:37,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:01:37,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:01:37,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:01:37,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:01:37,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:01:37,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:01:37,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:01:37,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:01:37,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:01:37,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:01:37,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:01:37,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:01:37,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:01:37,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:01:37,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:01:37,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 06:01:37,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:01:37,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:01:37,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:01:37,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:01:37,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:01:37,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:01:37,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:01:37,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:01:37,449 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:01:37,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:01:37,450 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:01:37,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:01:37,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:01:37,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:01:37,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:01:37,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:01:37,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:01:37,453 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:01:37,453 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:01:37,453 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:01:37,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:01:37,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:01:37,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:01:37,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:01:37,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:01:37,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:01:37,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:01:37,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:01:37,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:01:37,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:01:37,456 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:01:37,456 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:01:37,457 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:01:37,457 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:01:37,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:01:37,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:01:37,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:01:37,458 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-20 06:01:37,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:01:37,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:01:37,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:01:37,911 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:01:37,912 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:01:37,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-20 06:01:38,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/8c13391e5/3137a69e1ad44f1bb3b501f2563c86b4/FLAG2aeef5206 [2021-11-20 06:01:38,605 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:01:38,606 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-20 06:01:38,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/8c13391e5/3137a69e1ad44f1bb3b501f2563c86b4/FLAG2aeef5206 [2021-11-20 06:01:38,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/data/8c13391e5/3137a69e1ad44f1bb3b501f2563c86b4 [2021-11-20 06:01:38,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:01:38,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:01:38,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:01:38,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:01:38,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:01:38,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c01e89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38, skipping insertion in model container [2021-11-20 06:01:38,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:39,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:01:39,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:01:39,303 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-20 06:01:39,308 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-20 06:01:39,313 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-20 06:01:39,323 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-20 06:01:39,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:01:39,352 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:01:39,410 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-20 06:01:39,413 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-20 06:01:39,416 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-20 06:01:39,419 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_f7d3e616-80c9-4641-a13f-a0a435c7788f/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-20 06:01:39,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:01:39,453 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:01:39,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39 WrapperNode [2021-11-20 06:01:39,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:01:39,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:01:39,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:01:39,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:01:39,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,507 INFO L137 Inliner]: procedures = 24, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-11-20 06:01:39,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:01:39,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:01:39,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:01:39,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:01:39,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:01:39,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:01:39,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:01:39,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:01:39,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (1/1) ... [2021-11-20 06:01:39,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:01:39,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:01:39,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:01:39,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:01:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:01:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-20 06:01:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-20 06:01:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-20 06:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 06:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-20 06:01:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-20 06:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:01:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:01:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-20 06:01:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:01:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 06:01:39,785 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:01:39,787 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:01:40,159 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:01:40,180 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:01:40,181 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:01:40,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:40 BoogieIcfgContainer [2021-11-20 06:01:40,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:01:40,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:01:40,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:01:40,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:01:40,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:01:38" (1/3) ... [2021-11-20 06:01:40,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b53fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:40, skipping insertion in model container [2021-11-20 06:01:40,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:39" (2/3) ... [2021-11-20 06:01:40,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b53fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:40, skipping insertion in model container [2021-11-20 06:01:40,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:40" (3/3) ... [2021-11-20 06:01:40,205 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-20 06:01:40,211 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:01:40,211 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 06:01:40,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:01:40,321 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 06:01:40,321 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 06:01:40,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 06:01:40,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 06:01:40,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:40,366 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:40,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:01:40,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:40,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-11-20 06:01:40,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:01:40,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898877289] [2021-11-20 06:01:40,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:40,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:01:40,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:01:40,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:01:40,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:01:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:40,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-20 06:01:40,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:01:40,844 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-20 06:01:40,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-20 06:01:41,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 56 [2021-11-20 06:01:41,240 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-20 06:01:41,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 84 [2021-11-20 06:01:41,783 INFO L354 Elim1Store]: treesize reduction 449, result has 16.9 percent of original size [2021-11-20 06:01:41,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 78 treesize of output 127 [2021-11-20 06:01:46,084 INFO L354 Elim1Store]: treesize reduction 171, result has 16.2 percent of original size [2021-11-20 06:01:46,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 198 [2021-11-20 06:01:46,181 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 06:01:46,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 205 [2021-11-20 06:01:46,821 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 06:01:46,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 803 treesize of output 759 [2021-11-20 06:01:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:47,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:01:51,086 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_11|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_11|))))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_9| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_11| .cse1))) (store .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|)))))) is different from false [2021-11-20 06:01:53,909 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_3| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_11|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (and (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1))) (= v_subst_1 (select (select (let ((.cse2 (store |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_11| .cse1))) (store .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3| (store (store (store (store (select .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_subst_1))) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_2|)) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_11|))))))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) |c_returnsStructure_#res.f|)) (not (= (select (select (store |c_#memory_int| |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3| (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_2|) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)))) (not (= |c_returnsStructure_#in~index| (_ bv1 32)))) is different from true [2021-11-20 06:01:57,558 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_returnsStructure_#in~index| (_ bv1 32))) (forall ((|v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_5| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_3| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse4 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_5|) (_ bv0 32) (bvand (_ bv1 32) |c_returnsStructure_#in~index|)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (exists ((|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_11|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (and (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1))) (= v_subst_1 (select (select (let ((.cse2 (store |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_11| .cse1))) (store .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3| (store (store (store (store (select .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_subst_1))) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_2|)) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_11|))))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_5|)))) (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_9| (select (select (let ((.cse3 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_5| .cse4))) (store .cse3 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3| (store (store (store (store (select .cse3 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_3|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|))) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_2|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (let ((.cse5 (select .cse4 (_ bv0 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))))))) is different from true [2021-11-20 06:02:00,553 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testOne_#t~ret6#1.ieee.exponent| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f1~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret6#1.ieee.mantissa| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret6#1.ieee.negative| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_17| (_ BitVec 32))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_testOne_~#f1~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |ULTIMATE.start_testOne_~#f1~0#1.offset| |ULTIMATE.start_testOne_#t~ret6#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f1~0#1.offset|) |ULTIMATE.start_testOne_#t~ret6#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f1~0#1.offset|) |ULTIMATE.start_testOne_#t~ret6#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f1~0#1.offset| |v_skolemized_q#valueAsBitvector_17|)))) (let ((.cse2 (store (store (store (select .cse1 |v_returnsStructure_~#c~1.base_11|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (select (select (let ((.cse0 (store .cse1 |v_returnsStructure_~#c~1.base_11| .cse2))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_11|))))) (not (= |c_ULTIMATE.start_testOne_#t~ret6#1.f| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_17|)))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (let ((.cse3 (select .cse2 (_ bv0 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))))) is different from false [2021-11-20 06:02:00,845 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:02:00,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40323 treesize of output 40248 [2021-11-20 06:02:04,831 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:02:04,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 34068 treesize of output 34077 [2021-11-20 06:02:05,659 INFO L354 Elim1Store]: treesize reduction 483, result has 19.4 percent of original size [2021-11-20 06:02:05,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 34077 treesize of output 34117 [2021-11-20 06:02:06,256 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:02:06,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34153 treesize of output 34127 [2021-11-20 06:02:10,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-20 06:02:10,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-20 06:02:10,238 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:02:10,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 172 [2021-11-20 06:02:16,958 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_returnsStructure_#in~index| (_ bv0 32))) (forall ((|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.negative| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret6#1.ieee.exponent| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f1~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret6#1.ieee.mantissa| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_4| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret6#1.ieee.negative| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_17| (_ BitVec 32))) (let ((.cse3 (store |c_#memory_int| |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_4| (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_4|) |ULTIMATE.start_testOne_~#f1~0#1.offset| |ULTIMATE.start_testOne_#t~ret6#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f1~0#1.offset|) |ULTIMATE.start_testOne_#t~ret6#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f1~0#1.offset|) |ULTIMATE.start_testOne_#t~ret6#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f1~0#1.offset| |v_skolemized_q#valueAsBitvector_17|)))) (let ((.cse1 (store (store (store (select .cse3 |v_returnsStructure_~#c~1.base_11|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_17|)) |c_returnsStructure_#res.f|)) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_11|))))) (exists ((|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_18| (_ BitVec 32))) (and (or (= |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_4| |v_returnsStructure_~#c~1.base_11|) (= |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_4| |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_4|)) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_18|))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_18| (_ bv0 1)) |v_returnsStructure_~#c~1.base_11|))))))))) (not (= (select (select (let ((.cse2 (store .cse3 |v_returnsStructure_~#c~1.base_11| .cse1))) (store .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_4| (store (store (store (store (select .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_4|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|))) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_4|) |ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem8#1_9|))))))) is different from true [2021-11-20 06:02:21,738 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:02:21,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 74991 treesize of output 74906 [2021-11-20 06:02:28,827 WARN L227 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 326 DAG size of output: 326 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 06:02:28,979 INFO L354 Elim1Store]: treesize reduction 26, result has 61.8 percent of original size [2021-11-20 06:02:28,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 70298 treesize of output 70274 [2021-11-20 06:02:29,392 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:02:29,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898877289] [2021-11-20 06:02:29,394 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-11-20 06:02:29,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1852239561] [2021-11-20 06:02:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:29,395 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-20 06:02:29,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/cvc4 [2021-11-20 06:02:29,410 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-20 06:02:29,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2021-11-20 06:02:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:29,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-20 06:02:29,723 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@71a69ee1 [2021-11-20 06:02:29,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067260339] [2021-11-20 06:02:29,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:29,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:02:29,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:02:29,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:02:29,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:02:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:29,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-20 06:02:29,813 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@71a69ee1 [2021-11-20 06:02:29,813 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:29,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-20 06:02:29,814 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-20 06:02:29,816 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-20 06:02:29,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-20 06:02:29,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-20 06:02:29,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-20 06:02:29,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-20 06:02:29,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:02:30,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-20 06:02:30,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:02:30,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:02:30,436 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 06:02:30,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:02:30,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:02:30 BoogieIcfgContainer [2021-11-20 06:02:30,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:02:30,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:02:30,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:02:30,456 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:02:30,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:40" (3/4) ... [2021-11-20 06:02:30,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:02:30,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:02:30,461 INFO L158 Benchmark]: Toolchain (without parser) took 51481.36ms. Allocated memory was 56.6MB in the beginning and 314.6MB in the end (delta: 257.9MB). Free memory was 34.1MB in the beginning and 127.3MB in the end (delta: -93.2MB). Peak memory consumption was 169.2MB. Max. memory is 16.1GB. [2021-11-20 06:02:30,462 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 56.6MB. Free memory was 36.5MB in the beginning and 36.5MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:02:30,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.20ms. Allocated memory is still 56.6MB. Free memory was 33.9MB in the beginning and 37.1MB in the end (delta: -3.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-11-20 06:02:30,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.43ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 35.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:02:30,464 INFO L158 Benchmark]: Boogie Preprocessor took 67.91ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 33.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:02:30,465 INFO L158 Benchmark]: RCFGBuilder took 606.14ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 33.3MB in the beginning and 44.4MB in the end (delta: -11.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-11-20 06:02:30,466 INFO L158 Benchmark]: TraceAbstraction took 50269.33ms. Allocated memory was 69.2MB in the beginning and 314.6MB in the end (delta: 245.4MB). Free memory was 43.8MB in the beginning and 128.3MB in the end (delta: -84.5MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. [2021-11-20 06:02:30,467 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 314.6MB. Free memory was 128.3MB in the beginning and 127.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:02:30,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 56.6MB. Free memory was 36.5MB in the beginning and 36.5MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.20ms. Allocated memory is still 56.6MB. Free memory was 33.9MB in the beginning and 37.1MB in the end (delta: -3.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.43ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 35.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.91ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 33.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.14ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 33.3MB in the beginning and 44.4MB in the end (delta: -11.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 50269.33ms. Allocated memory was 69.2MB in the beginning and 314.6MB in the end (delta: 245.4MB). Free memory was 43.8MB in the beginning and 128.3MB in the end (delta: -84.5MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 314.6MB. Free memory was 128.3MB in the beginning and 127.3MB in the end (delta: 1.1MB). 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: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; [L141] CALL, EXPR returnsStructure(0) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L141] RET, EXPR returnsStructure(0) [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L142] RET, EXPR returnsStructure(1) [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: 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, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 50.1s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 48.7s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 7 QuantifiedInterpolants, 588 SizeOfPredicates, 7 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/3 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 06:02:30,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d3e616-80c9-4641-a13f-a0a435c7788f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN