./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:32:46,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:32:46,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:32:46,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:32:46,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:32:46,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:32:46,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:32:46,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:32:46,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:32:46,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:32:46,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:32:46,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:32:46,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:32:46,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:32:46,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:32:46,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:32:46,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:32:46,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:32:46,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:32:46,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:32:46,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:32:46,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:32:46,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:32:46,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:32:46,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:32:46,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:32:46,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:32:46,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:32:46,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:32:46,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:32:46,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:32:46,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:32:46,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:32:46,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:32:46,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:32:46,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:32:46,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:32:46,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:32:46,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:32:46,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:32:46,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:32:46,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:32:46,388 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:32:46,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:32:46,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:32:46,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:32:46,389 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:32:46,390 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:32:46,390 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:32:46,390 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:32:46,390 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:32:46,390 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:32:46,390 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:32:46,391 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:32:46,398 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:32:46,399 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:32:46,399 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:32:46,399 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:32:46,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:32:46,400 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:32:46,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:32:46,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:32:46,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:32:46,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:32:46,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:32:46,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:32:46,405 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:32:46,406 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:32:46,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:32:46,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:32:46,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:32:46,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:32:46,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:32:46,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:32:46,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:32:46,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:32:46,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:32:46,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:32:46,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:32:46,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:32:46,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:32:46,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:32:46,411 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-19 14:32:46,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:32:46,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:32:46,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:32:46,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:32:46,711 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:32:46,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-19 14:32:46,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/9dbc588b0/10b3b9db8e4b49d0922fc4212f380bbe/FLAG04d5ef761 [2021-11-19 14:32:47,328 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:32:47,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-19 14:32:47,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/9dbc588b0/10b3b9db8e4b49d0922fc4212f380bbe/FLAG04d5ef761 [2021-11-19 14:32:47,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/9dbc588b0/10b3b9db8e4b49d0922fc4212f380bbe [2021-11-19 14:32:47,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:32:47,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:32:47,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:47,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:32:47,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:32:47,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:47,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f4eca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47, skipping insertion in model container [2021-11-19 14:32:47,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:47,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:32:47,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:32:47,894 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-19 14:32:47,899 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-19 14:32:47,901 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-19 14:32:47,904 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-19 14:32:47,905 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:47,913 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:32:47,936 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-19 14:32:47,939 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-19 14:32:47,941 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-19 14:32:47,944 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-19 14:32:47,945 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:47,959 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:32:47,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47 WrapperNode [2021-11-19 14:32:47,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:47,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:32:47,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:32:47,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:32:47,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:47,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,007 INFO L137 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-11-19 14:32:48,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:32:48,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:32:48,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:32:48,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:32:48,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:32:48,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:32:48,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:32:48,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:32:48,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (1/1) ... [2021-11-19 14:32:48,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:32:48,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:32:48,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:32:48,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:32:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:32:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-19 14:32:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-19 14:32:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:32:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:32:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 14:32:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 14:32:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 14:32:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-19 14:32:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-19 14:32:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:32:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:32:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 14:32:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:32:48,220 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:32:48,222 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:32:48,562 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:32:48,614 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:32:48,615 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:32:48,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:32:48 BoogieIcfgContainer [2021-11-19 14:32:48,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:32:48,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:32:48,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:32:48,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:32:48,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:32:47" (1/3) ... [2021-11-19 14:32:48,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4648b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:32:48, skipping insertion in model container [2021-11-19 14:32:48,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:47" (2/3) ... [2021-11-19 14:32:48,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4648b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:32:48, skipping insertion in model container [2021-11-19 14:32:48,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:32:48" (3/3) ... [2021-11-19 14:32:48,628 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-19 14:32:48,634 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:32:48,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-19 14:32:48,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:32:48,700 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=FINITE_AUTOMATA, 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 [2021-11-19 14:32:48,701 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-19 14:32:48,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 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) [2021-11-19 14:32:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:32:48,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:48,728 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:32:48,729 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)] === [2021-11-19 14:32:48,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:48,734 INFO L85 PathProgramCache]: Analyzing trace with hash -682083065, now seen corresponding path program 1 times [2021-11-19 14:32:48,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:32:48,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358647987] [2021-11-19 14:32:48,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:48,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:32:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:32:48,895 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:32:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:32:48,979 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:32:48,981 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:32:48,982 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-19 14:32:48,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-19 14:32:48,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-19 14:32:48,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-19 14:32:48,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:32:48,993 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 14:32:48,995 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:32:49,006 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-19 14:32:49,007 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 [2021-11-19 14:32:49,007 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-19 14:32:49,007 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 [2021-11-19 14:32:49,007 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-19 14:32:49,007 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 [2021-11-19 14:32:49,009 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-19 14:32:49,009 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-19 14:32:49,009 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-19 14:32:49,010 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-19 14:32:49,010 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 [2021-11-19 14:32:49,010 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-19 14:32:49,011 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 [2021-11-19 14:32:49,011 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-19 14:32:49,012 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 [2021-11-19 14:32:49,012 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-19 14:32:49,012 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-19 14:32:49,013 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-19 14:32:49,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:32:49 BoogieIcfgContainer [2021-11-19 14:32:49,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:32:49,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:32:49,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:32:49,042 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:32:49,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:32:48" (3/4) ... [2021-11-19 14:32:49,046 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:32:49,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:32:49,048 INFO L158 Benchmark]: Toolchain (without parser) took 1381.56ms. Allocated memory is still 115.3MB. Free memory was 72.3MB in the beginning and 45.9MB in the end (delta: 26.4MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-11-19 14:32:49,049 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:32:49,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.32ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 87.8MB in the end (delta: -15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:32:49,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.76ms. Allocated memory is still 115.3MB. Free memory was 87.8MB in the beginning and 86.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:32:49,060 INFO L158 Benchmark]: Boogie Preprocessor took 40.51ms. Allocated memory is still 115.3MB. Free memory was 86.1MB in the beginning and 84.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:32:49,061 INFO L158 Benchmark]: RCFGBuilder took 567.71ms. Allocated memory is still 115.3MB. Free memory was 84.3MB in the beginning and 66.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 14:32:49,062 INFO L158 Benchmark]: TraceAbstraction took 417.83ms. Allocated memory is still 115.3MB. Free memory was 66.5MB in the beginning and 46.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-19 14:32:49,063 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 115.3MB. Free memory was 46.2MB in the beginning and 45.9MB in the end (delta: 325.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:32:49,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.32ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 87.8MB in the end (delta: -15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.76ms. Allocated memory is still 115.3MB. Free memory was 87.8MB in the beginning and 86.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.51ms. Allocated memory is still 115.3MB. Free memory was 86.1MB in the beginning and 84.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.71ms. Allocated memory is still 115.3MB. Free memory was 84.3MB in the beginning and 66.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 417.83ms. Allocated memory is still 115.3MB. Free memory was 66.5MB in the beginning and 46.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 115.3MB. Free memory was 46.2MB in the beginning and 45.9MB in the end (delta: 325.4kB). 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.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.mantissa - 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.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.mantissa - 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.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={6:0}, f2={5:0}] [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; [L141] RET, EXPR returnsStructure(0) VAL [f1={6:0}, f2={5:0}, returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=56returnsStructure(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; [L142] RET, EXPR returnsStructure(1) VAL [f1={6:0}, f2={5:0}, returnsStructure(1)=49returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [f1={6:0}, f1.ieee.negative=0, f2={5:0}, f2.ieee.negative=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [f1={6:0}, f2={5:0}] - 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, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=37occurred 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, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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 [2021-11-19 14:32:49,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:32:51,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:32:51,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:32:51,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:32:51,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:32:51,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:32:51,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:32:51,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:32:51,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:32:51,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:32:51,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:32:51,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:32:51,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:32:51,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:32:51,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:32:51,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:32:51,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:32:51,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:32:51,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:32:51,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:32:51,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:32:51,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:32:51,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:32:51,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:32:51,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:32:51,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:32:51,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:32:51,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:32:51,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:32:51,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:32:51,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:32:51,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:32:51,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:32:51,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:32:51,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:32:51,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:32:51,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:32:51,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:32:51,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:32:51,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:32:51,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:32:51,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:32:51,979 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:32:51,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:32:51,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:32:51,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:32:51,981 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:32:51,982 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:32:51,982 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:32:51,982 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:32:51,982 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:32:51,983 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:32:51,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:32:51,985 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:32:51,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:32:51,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:32:51,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:32:51,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:32:51,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:32:51,987 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:32:51,987 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:32:51,988 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:32:51,988 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:32:51,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:32:51,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:32:51,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:32:51,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:32:51,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:32:51,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:32:51,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:32:51,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:32:51,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:32:51,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:32:51,991 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:32:51,991 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:32:51,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:32:51,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:32:51,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:32:51,992 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-19 14:32:52,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:32:52,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:32:52,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:32:52,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:32:52,444 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:32:52,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-19 14:32:52,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/42429e09c/5bb44acdb54e42ef98e5521aef81a5bc/FLAG857e4ebfc [2021-11-19 14:32:52,985 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:32:52,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-19 14:32:52,999 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/42429e09c/5bb44acdb54e42ef98e5521aef81a5bc/FLAG857e4ebfc [2021-11-19 14:32:53,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/data/42429e09c/5bb44acdb54e42ef98e5521aef81a5bc [2021-11-19 14:32:53,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:32:53,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:32:53,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:53,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:32:53,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:32:53,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445824d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53, skipping insertion in model container [2021-11-19 14:32:53,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:32:53,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:32:53,646 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-19 14:32:53,651 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-19 14:32:53,653 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-19 14:32:53,656 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-19 14:32:53,657 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:53,668 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:32:53,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-19 14:32:53,765 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-19 14:32:53,767 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-19 14:32:53,780 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_b03c2087-173c-4cfc-b2b9-76a2c2190407/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-19 14:32:53,782 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:53,799 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:32:53,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53 WrapperNode [2021-11-19 14:32:53,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:53,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:32:53,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:32:53,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:32:53,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,868 INFO L137 Inliner]: procedures = 24, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-11-19 14:32:53,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:32:53,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:32:53,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:32:53,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:32:53,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:32:53,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:32:53,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:32:53,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:32:53,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (1/1) ... [2021-11-19 14:32:53,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:32:53,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:32:53,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:32:53,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:32:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:32:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-19 14:32:54,015 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-19 14:32:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:32:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:32:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 14:32:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:32:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-19 14:32:54,016 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-19 14:32:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:32:54,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:32:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 14:32:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:32:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:32:54,103 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:32:54,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:32:54,365 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:32:54,372 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:32:54,383 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:32:54,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:32:54 BoogieIcfgContainer [2021-11-19 14:32:54,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:32:54,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:32:54,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:32:54,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:32:54,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:32:53" (1/3) ... [2021-11-19 14:32:54,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44adb6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:32:54, skipping insertion in model container [2021-11-19 14:32:54,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:53" (2/3) ... [2021-11-19 14:32:54,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44adb6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:32:54, skipping insertion in model container [2021-11-19 14:32:54,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:32:54" (3/3) ... [2021-11-19 14:32:54,400 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-19 14:32:54,405 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:32:54,405 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-19 14:32:54,456 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:32:54,465 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=FINITE_AUTOMATA, 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 [2021-11-19 14:32:54,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-19 14:32:54,495 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) [2021-11-19 14:32:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 14:32:54,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:54,504 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:32:54,505 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)] === [2021-11-19 14:32:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-11-19 14:32:54,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:54,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174069829] [2021-11-19 14:32:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:54,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:54,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:54,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:54,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:32:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:54,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-19 14:32:54,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:54,925 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 14:32:54,928 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 [2021-11-19 14:32:55,055 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 [2021-11-19 14:32:55,276 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-19 14:32:55,277 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 [2021-11-19 14:32:55,970 INFO L354 Elim1Store]: treesize reduction 449, result has 16.9 percent of original size [2021-11-19 14:32:55,970 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 [2021-11-19 14:32:59,153 INFO L354 Elim1Store]: treesize reduction 171, result has 16.2 percent of original size [2021-11-19 14:32:59,153 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 [2021-11-19 14:32:59,234 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-19 14:32:59,234 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 [2021-11-19 14:32:59,759 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-19 14:32:59,760 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 [2021-11-19 14:32:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:32:59,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:04,788 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 [2021-11-19 14:33:07,556 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 [2021-11-19 14:33:11,129 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 [2021-11-19 14:33:25,977 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:25,978 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 [2021-11-19 14:33:29,240 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:29,241 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 [2021-11-19 14:33:30,023 INFO L354 Elim1Store]: treesize reduction 483, result has 19.4 percent of original size [2021-11-19 14:33:30,024 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 [2021-11-19 14:33:30,567 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:30,568 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 [2021-11-19 14:33:33,957 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 [2021-11-19 14:33:33,998 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 [2021-11-19 14:33:34,154 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:34,154 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 [2021-11-19 14:33:42,315 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 [2021-11-19 14:33:45,586 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:45,587 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 [2021-11-19 14:33:52,047 WARN L227 SmtUtils]: Spent 6.46s 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) [2021-11-19 14:33:52,271 INFO L354 Elim1Store]: treesize reduction 26, result has 61.8 percent of original size [2021-11-19 14:33:52,272 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 [2021-11-19 14:33:52,925 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:52,926 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 70274 treesize of output 70288 [2021-11-19 14:33:53,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:53,398 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:53,399 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 70255 treesize of output 70260 [2021-11-19 14:34:01,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:34:01,434 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:34:01,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:34:01,464 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:34:01,464 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 20 treesize of output 23 [2021-11-19 14:34:03,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 138 [2021-11-19 14:34:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-19 14:34:09,803 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:09,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174069829] [2021-11-19 14:34:09,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174069829] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:34:09,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1811606253] [2021-11-19 14:34:09,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:09,805 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:34:09,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:34:09,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:34:09,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b03c2087-173c-4cfc-b2b9-76a2c2190407/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2021-11-19 14:34:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:10,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-19 14:34:10,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:10,097 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 14:34:10,098 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 [2021-11-19 14:34:10,257 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 [2021-11-19 14:34:10,425 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-19 14:34:10,426 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 [2021-11-19 14:34:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:34:10,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:34:10,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:34:10,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:34:10,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:34:10,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:34:10,817 INFO L354 Elim1Store]: treesize reduction 40, result has 42.9 percent of original size [2021-11-19 14:34:10,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 84 [2021-11-19 14:34:13,619 INFO L354 Elim1Store]: treesize reduction 68, result has 32.7 percent of original size [2021-11-19 14:34:13,619 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 162 treesize of output 162 [2021-11-19 14:34:13,671 INFO L354 Elim1Store]: treesize reduction 28, result has 31.7 percent of original size [2021-11-19 14:34:13,672 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 155 treesize of output 159 [2021-11-19 14:34:13,977 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 14:34:13,977 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 183 treesize of output 143 [2021-11-19 14:34:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:14,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:16,735 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_testOne_#t~mem8#1_13| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_26| (_ 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_26|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_26| .cse1))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |c_ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |c_ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_13|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem8#1_13|)) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_13|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_26|))))))) is different from false [2021-11-19 14:34:19,317 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_testOne_#t~mem8#1_13| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_7| (_ 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))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_13| (select (select (store |c_#memory_int| |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7| (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| |v_ULTIMATE.start_testOne_#t~mem8#1_13|)) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_5|))) (not (= |c_returnsStructure_#res.f| (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_13|)))) (exists ((|v_ULTIMATE.start_testOne_#t~mem8#1_13| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_26| (_ 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_26|) (_ 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_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_13|))) (= |v_ULTIMATE.start_testOne_#t~mem8#1_13| (select (select (let ((.cse2 (store |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_26| .cse1))) (store .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7| (store (store (store (store (select .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| |v_ULTIMATE.start_testOne_#t~mem8#1_13|))) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_5|)) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_26|))))))))) (not (= |c_returnsStructure_#in~index| (_ bv1 32)))) is different from true [2021-11-19 14:34:22,681 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_testOne_#t~mem8#1_13| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_5| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_21| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_7| (_ 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_21|) (_ bv0 32) (bvand (_ bv1 32) |c_returnsStructure_#in~index|)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_13| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_21| .cse1))) (store .cse0 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7| (store (store (store (store (select .cse0 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| |v_ULTIMATE.start_testOne_#t~mem8#1_13|))) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_5|))) (exists ((|v_returnsStructure_~#c~1.base_26| (_ BitVec 32)) (v_subst_2 (_ 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 ((.cse3 (store (store (store (select |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_26|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (and (= v_subst_2 (select (select (let ((.cse2 (store |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_26| .cse3))) (store .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7| (store (store (store (store (select .cse2 |v_ULTIMATE.start_testOne_~#f2~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| |ULTIMATE.start_testOne_#t~ret7#1.ieee.negative|) (bvadd (_ bv4 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.exponent|) (bvadd (_ bv8 32) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3|) |ULTIMATE.start_testOne_#t~ret7#1.ieee.mantissa|) |v_ULTIMATE.start_testOne_~#f2~0#1.offset_BEFORE_CALL_3| v_subst_2))) |v_ULTIMATE.start_testOne_~#f1~0#1.base_BEFORE_CALL_7|) |v_ULTIMATE.start_testOne_~#f1~0#1.offset_BEFORE_CALL_5|)) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_26|)))) (= (let ((.cse4 (select .cse3 (_ bv0 32)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))) (fp ((_ extract 31 31) v_subst_2) ((_ extract 30 23) v_subst_2) ((_ extract 22 0) v_subst_2)))))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_21|))) (not (= (let ((.cse5 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_13|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_13|))))))) (not (= |c_returnsStructure_#in~index| (_ bv1 32)))) is different from true [2021-11-19 14:34:45,006 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:34:45,009 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 4618107 treesize of output 4618032 [2021-11-19 14:46:42,957 WARN L227 SmtUtils]: Spent 11.97m on a formula simplification. DAG size of input: 1897 DAG size of output: 1897 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-19 14:46:43,174 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:43,177 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 4323084 treesize of output 4323093 [2021-11-19 14:47:06,296 WARN L227 SmtUtils]: Spent 23.12s on a formula simplification that was a NOOP. DAG size: 1898 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-19 14:47:07,100 INFO L354 Elim1Store]: treesize reduction 483, result has 19.4 percent of original size [2021-11-19 14:47:07,104 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 4323093 treesize of output 4323133