./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 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 913adc451f82986f823cb502b614806ec5bc93f1 ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 913adc451f82986f823cb502b614806ec5bc93f1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:40:49,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:40:49,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:40:49,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:40:49,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:40:49,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:40:49,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:40:49,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:40:49,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:40:49,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:40:49,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:40:49,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:40:49,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:40:49,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:40:49,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:40:49,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:40:49,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:40:49,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:40:49,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:40:49,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:40:49,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:40:49,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:40:49,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:40:49,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:40:49,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:40:49,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:40:49,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:40:49,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:40:49,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:40:49,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:40:49,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:40:49,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:40:49,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:40:49,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:40:49,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:40:49,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:40:49,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:40:49,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:40:49,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:40:49,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:40:49,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:40:49,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:40:49,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:40:49,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:40:49,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:40:49,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:40:49,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:40:49,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:40:49,273 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:40:49,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:40:49,273 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:40:49,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:40:49,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:40:49,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:40:49,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:40:49,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:40:49,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:40:49,275 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:40:49,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:40:49,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:40:49,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:40:49,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:40:49,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:40:49,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:40:49,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:49,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:40:49,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:40:49,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:40:49,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:40:49,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:40:49,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:40:49,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:40:49,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 913adc451f82986f823cb502b614806ec5bc93f1 [2021-08-29 06:40:49,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:40:49,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:40:49,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:40:49,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:40:49,570 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:40:49,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-08-29 06:40:49,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d27a4f20/321c63d4dd3f43b4ba372ef02e767bab/FLAGd83830707 [2021-08-29 06:40:50,015 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:40:50,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-08-29 06:40:50,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d27a4f20/321c63d4dd3f43b4ba372ef02e767bab/FLAGd83830707 [2021-08-29 06:40:50,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d27a4f20/321c63d4dd3f43b4ba372ef02e767bab [2021-08-29 06:40:50,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:40:50,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:40:50,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:50,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:40:50,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:40:50,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a4f61e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50, skipping insertion in model container [2021-08-29 06:40:50,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:40:50,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:40:50,225 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-08-29 06:40:50,231 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-08-29 06:40:50,233 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-08-29 06:40:50,236 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-08-29 06:40:50,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:50,245 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:40:50,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-08-29 06:40:50,301 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-08-29 06:40:50,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-08-29 06:40:50,309 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-08-29 06:40:50,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:50,321 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:40:50,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50 WrapperNode [2021-08-29 06:40:50,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:50,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:50,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:40:50,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:40:50,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:50,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:40:50,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:40:50,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:40:50,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:40:50,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:40:50,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:40:50,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:40:50,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (1/1) ... [2021-08-29 06:40:50,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:50,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:40:50,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:40:50,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:40:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 06:40:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:40:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 06:40:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 06:40:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 06:40:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:40:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:40:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 06:40:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 06:40:50,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:40:50,873 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-29 06:40:50,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:50 BoogieIcfgContainer [2021-08-29 06:40:50,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:40:50,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:40:50,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:40:50,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:40:50,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:40:50" (1/3) ... [2021-08-29 06:40:50,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4386bc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:50, skipping insertion in model container [2021-08-29 06:40:50,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:50" (2/3) ... [2021-08-29 06:40:50,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4386bc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:50, skipping insertion in model container [2021-08-29 06:40:50,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:50" (3/3) ... [2021-08-29 06:40:50,881 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-08-29 06:40:50,885 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:40:50,885 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-29 06:40:50,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:40:50,916 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, mConcurrency=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 [2021-08-29 06:40:50,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-29 06:40:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:40:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-29 06:40:50,927 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:40:50,928 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-29 06:40:50,928 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)] === [2021-08-29 06:40:50,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:40:50,931 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2021-08-29 06:40:50,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:40:50,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205441035] [2021-08-29 06:40:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:40:50,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:40:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:40:51,044 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:40:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:40:51,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 06:40:51,097 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:40:51,098 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-08-29 06:40:51,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-08-29 06:40:51,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-08-29 06:40:51,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-08-29 06:40:51,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 06:40:51,104 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:40:51,109 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,109 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2021-08-29 06:40:51,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:40:51 BoogieIcfgContainer [2021-08-29 06:40:51,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:40:51,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:40:51,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:40:51,122 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:40:51,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:50" (3/4) ... [2021-08-29 06:40:51,124 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:40:51,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:40:51,125 INFO L158 Benchmark]: Toolchain (without parser) took 1085.69ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 31.6MB in the beginning and 39.8MB in the end (delta: -8.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-08-29 06:40:51,126 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:40:51,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.49ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 31.4MB in the beginning and 52.8MB in the end (delta: -21.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-08-29 06:40:51,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.88ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 50.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:40:51,127 INFO L158 Benchmark]: Boogie Preprocessor took 51.12ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 48.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:40:51,127 INFO L158 Benchmark]: RCFGBuilder took 445.29ms. Allocated memory is still 71.3MB. Free memory was 48.0MB in the beginning and 42.2MB in the end (delta: 5.8MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-08-29 06:40:51,127 INFO L158 Benchmark]: TraceAbstraction took 245.82ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 40.2MB in the end (delta: 1.8MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2021-08-29 06:40:51,128 INFO L158 Benchmark]: Witness Printer took 2.44ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 39.8MB in the end (delta: 330.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:40:51,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.49ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 31.4MB in the beginning and 52.8MB in the end (delta: -21.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.88ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 50.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.12ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 48.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.29ms. Allocated memory is still 71.3MB. Free memory was 48.0MB in the beginning and 42.2MB in the end (delta: 5.8MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 245.82ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 40.2MB in the end (delta: 1.8MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 2.44ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 39.8MB in the end (delta: 330.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms 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: [L139] ieee754_float f1, f2; [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L141] f1 = returnsStructure(0) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=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 1 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 192.22ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 4.79ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 5.69ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.66ms SsaConstructionTime, 50.79ms SatisfiabilityAnalysisTime, 0.00ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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 [2021-08-29 06:40:51,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:40:52,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:40:52,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:40:52,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:40:52,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:40:52,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:40:52,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:40:52,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:40:52,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:40:52,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:40:52,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:40:52,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:40:52,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:40:52,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:40:52,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:40:52,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:40:52,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:40:52,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:40:52,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:40:52,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:40:52,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:40:52,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:40:52,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:40:52,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:40:52,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:40:52,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:40:52,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:40:52,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:40:52,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:40:52,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:40:52,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:40:52,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:40:52,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:40:52,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:40:52,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:40:52,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:40:52,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:40:52,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:40:52,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:40:52,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:40:52,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:40:52,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:40:52,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:40:52,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:40:52,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:40:52,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:40:52,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:40:52,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:40:52,935 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:40:52,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:40:52,936 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:40:52,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:40:52,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:40:52,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:52,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:40:52,938 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:40:52,939 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:40:52,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:40:52,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:40:52,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:40:52,939 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 913adc451f82986f823cb502b614806ec5bc93f1 [2021-08-29 06:40:53,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:40:53,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:40:53,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:40:53,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:40:53,239 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:40:53,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-08-29 06:40:53,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c65f0e0b0/c9c95da3476a4e6d94f9440317d362a6/FLAG73fa63b3c [2021-08-29 06:40:53,675 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:40:53,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-08-29 06:40:53,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c65f0e0b0/c9c95da3476a4e6d94f9440317d362a6/FLAG73fa63b3c [2021-08-29 06:40:54,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c65f0e0b0/c9c95da3476a4e6d94f9440317d362a6 [2021-08-29 06:40:54,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:40:54,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:40:54,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:54,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:40:54,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:40:54,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297558e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54, skipping insertion in model container [2021-08-29 06:40:54,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:40:54,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:40:54,229 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-08-29 06:40:54,232 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-08-29 06:40:54,233 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-08-29 06:40:54,234 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-08-29 06:40:54,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:54,243 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:40:54,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-08-29 06:40:54,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-08-29 06:40:54,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-08-29 06:40:54,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-08-29 06:40:54,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:54,323 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:40:54,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54 WrapperNode [2021-08-29 06:40:54,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:54,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:54,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:40:54,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:40:54,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:54,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:40:54,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:40:54,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:40:54,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:40:54,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:40:54,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:40:54,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:40:54,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (1/1) ... [2021-08-29 06:40:54,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:40:54,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:40:54,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:40:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:40:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:40:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-29 06:40:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 06:40:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:40:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:40:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-29 06:40:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 06:40:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 06:40:54,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:40:54,760 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-29 06:40:54,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:54 BoogieIcfgContainer [2021-08-29 06:40:54,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:40:54,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:40:54,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:40:54,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:40:54,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:40:54" (1/3) ... [2021-08-29 06:40:54,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a580b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:54, skipping insertion in model container [2021-08-29 06:40:54,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:54" (2/3) ... [2021-08-29 06:40:54,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a580b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:54, skipping insertion in model container [2021-08-29 06:40:54,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:54" (3/3) ... [2021-08-29 06:40:54,770 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-08-29 06:40:54,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:40:54,774 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-29 06:40:54,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:40:54,821 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, mConcurrency=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 [2021-08-29 06:40:54,822 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-29 06:40:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:40:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-29 06:40:54,845 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:40:54,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-29 06:40:54,845 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)] === [2021-08-29 06:40:54,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:40:54,849 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2021-08-29 06:40:54,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:40:54,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689379776] [2021-08-29 06:40:54,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:40:54,860 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:40:54,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:40:54,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:40:54,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:40:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:40:55,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-29 06:40:55,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:40:55,160 INFO L354 Elim1Store]: treesize reduction 47, result has 25.4 percent of original size [2021-08-29 06:40:55,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 78 [2021-08-29 06:40:55,178 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 71 treesize of output 75 [2021-08-29 06:40:55,591 INFO L354 Elim1Store]: treesize reduction 977, result has 5.0 percent of original size [2021-08-29 06:40:55,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 165 treesize of output 153 [2021-08-29 06:40:55,637 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-08-29 06:40:55,638 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 128 treesize of output 136 [2021-08-29 06:40:55,774 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-08-29 06:40:55,775 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 24423 treesize of output 23875 [2021-08-29 06:40:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:40:57,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:12,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:12,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689379776] [2021-08-29 06:41:12,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689379776] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:12,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:12,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 06:41:12,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689732994] [2021-08-29 06:41:12,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 06:41:12,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:12,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 06:41:12,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=35, Unknown=5, NotChecked=0, Total=56 [2021-08-29 06:41:12,226 INFO L87 Difference]: Start difference. First operand has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:12,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:12,392 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2021-08-29 06:41:12,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 06:41:12,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-29 06:41:12,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:12,399 INFO L225 Difference]: With dead ends: 57 [2021-08-29 06:41:12,399 INFO L226 Difference]: Without dead ends: 25 [2021-08-29 06:41:12,400 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 14389.80ms TimeCoverageRelationStatistics Valid=16, Invalid=35, Unknown=5, NotChecked=0, Total=56 [2021-08-29 06:41:12,403 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 144.66ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:12,403 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 136 Unknown, 0 Unchecked, 1.67ms Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 55 Unchecked, 144.66ms Time] [2021-08-29 06:41:12,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-08-29 06:41:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-08-29 06:41:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 24 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2021-08-29 06:41:12,425 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 6 [2021-08-29 06:41:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:12,426 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2021-08-29 06:41:12,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2021-08-29 06:41:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 06:41:12,427 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:12,427 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:41:12,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 06:41:12,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:12,638 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-29 06:41:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:12,639 INFO L82 PathProgramCache]: Analyzing trace with hash 2061469933, now seen corresponding path program 1 times [2021-08-29 06:41:12,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:12,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323221502] [2021-08-29 06:41:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:12,640 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:12,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:12,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:12,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 06:41:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:12,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjunts are in the unsatisfiable core [2021-08-29 06:41:12,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:12,872 INFO L354 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2021-08-29 06:41:12,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 81 [2021-08-29 06:41:12,879 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 72 treesize of output 76 [2021-08-29 06:41:13,197 INFO L354 Elim1Store]: treesize reduction 977, result has 5.0 percent of original size [2021-08-29 06:41:13,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 166 treesize of output 154 [2021-08-29 06:41:13,251 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-08-29 06:41:13,252 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 129 treesize of output 137 [2021-08-29 06:41:13,386 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-08-29 06:41:13,386 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 435 treesize of output 391 [2021-08-29 06:41:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:13,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:15,503 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem14_9| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_returnsStructure_#res.ieee.exponent| (_ BitVec 32))) (or (not (= |v_ULTIMATE.start_testTwo_#t~mem14_9| (select (select (store |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset| |c_ULTIMATE.start_returnsStructure_#res.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f2~1.offset|) |ULTIMATE.start_returnsStructure_#res.ieee.mantissa|) |ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem14_9|)) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem14_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem14_9|)) |c_ULTIMATE.start_returnsStructure_#res.f|)))) is different from false [2021-08-29 06:41:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:23,667 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:23,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323221502] [2021-08-29 06:41:23,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323221502] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:23,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:23,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 06:41:23,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75669542] [2021-08-29 06:41:23,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 06:41:23,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 06:41:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=29, Unknown=2, NotChecked=10, Total=56 [2021-08-29 06:41:23,669 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:25,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:25,885 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2021-08-29 06:41:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 06:41:25,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 06:41:25,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:25,886 INFO L225 Difference]: With dead ends: 25 [2021-08-29 06:41:25,886 INFO L226 Difference]: Without dead ends: 23 [2021-08-29 06:41:25,887 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11406.29ms TimeCoverageRelationStatistics Valid=19, Invalid=39, Unknown=2, NotChecked=12, Total=72 [2021-08-29 06:41:25,887 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 120.99ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:25,888 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 121 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 61 Unchecked, 120.99ms Time] [2021-08-29 06:41:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-08-29 06:41:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-08-29 06:41:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 22 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-08-29 06:41:25,891 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2021-08-29 06:41:25,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:25,892 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-08-29 06:41:25,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:25,892 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-08-29 06:41:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 06:41:25,892 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:25,892 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:41:25,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 06:41:26,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:26,100 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-29 06:41:26,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:26,100 INFO L82 PathProgramCache]: Analyzing trace with hash -2079313263, now seen corresponding path program 1 times [2021-08-29 06:41:26,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:26,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533229343] [2021-08-29 06:41:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:26,101 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:26,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:26,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:26,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 06:41:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:26,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 35 conjunts are in the unsatisfiable core [2021-08-29 06:41:26,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:26,474 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-08-29 06:41:26,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 34 [2021-08-29 06:41:26,569 INFO L354 Elim1Store]: treesize reduction 81, result has 23.6 percent of original size [2021-08-29 06:41:26,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 35 treesize of output 50 [2021-08-29 06:41:26,734 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-08-29 06:41:26,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 95 [2021-08-29 06:41:26,778 INFO L354 Elim1Store]: treesize reduction 81, result has 23.6 percent of original size [2021-08-29 06:41:26,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 89 treesize of output 104 [2021-08-29 06:41:26,982 INFO L354 Elim1Store]: treesize reduction 132, result has 25.0 percent of original size [2021-08-29 06:41:26,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 16 case distinctions, treesize of input 153 treesize of output 152 [2021-08-29 06:41:27,017 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-08-29 06:41:27,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 138 [2021-08-29 06:41:27,178 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-29 06:41:27,179 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 101 treesize of output 65 [2021-08-29 06:41:27,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:27,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:29,529 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_testTwo_#t~mem18_10| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_21| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_18| (_ BitVec 32))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_21|)))) (let ((.cse2 (store (store (store (select .cse1 |v_ULTIMATE.start_returnsField_~#c~0.base_18|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_18|))) (not (= (select (select (let ((.cse0 (store .cse1 |v_ULTIMATE.start_returnsField_~#c~0.base_18| .cse2))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1.base|) |c_ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem18_10|))) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset|) |v_ULTIMATE.start_testTwo_#t~mem18_10|)) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_21|)) |c_ULTIMATE.start_returnsField_#res|)) (not (= (let ((.cse3 (select .cse2 (_ bv0 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem18_10|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem18_10|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem18_10|)))))))) is different from false [2021-08-29 06:41:35,108 INFO L354 Elim1Store]: treesize reduction 46, result has 54.0 percent of original size [2021-08-29 06:41:35,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1347 treesize of output 1306 [2021-08-29 06:41:35,294 INFO L354 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2021-08-29 06:41:35,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1234 treesize of output 1246 [2021-08-29 06:41:35,397 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-08-29 06:41:35,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1251 treesize of output 1259 [2021-08-29 06:41:35,974 INFO L354 Elim1Store]: treesize reduction 42, result has 47.5 percent of original size [2021-08-29 06:41:35,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 81 [2021-08-29 06:41:36,956 INFO L354 Elim1Store]: treesize reduction 42, result has 52.3 percent of original size [2021-08-29 06:41:36,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 93 [2021-08-29 06:41:39,434 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:39,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533229343] [2021-08-29 06:41:39,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-29 06:41:39,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1353571727] [2021-08-29 06:41:39,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:39,435 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-29 06:41:39,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-29 06:41:39,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-29 06:41:39,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-08-29 06:41:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:40,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 29 conjunts are in the unsatisfiable core [2021-08-29 06:41:40,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:40,085 INFO L354 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2021-08-29 06:41:40,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 41 [2021-08-29 06:41:40,245 INFO L354 Elim1Store]: treesize reduction 73, result has 25.5 percent of original size [2021-08-29 06:41:40,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 36 treesize of output 51 [2021-08-29 06:41:40,355 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 77 treesize of output 81 [2021-08-29 06:41:40,402 INFO L354 Elim1Store]: treesize reduction 73, result has 25.5 percent of original size [2021-08-29 06:41:40,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 81 treesize of output 96 [2021-08-29 06:41:40,610 INFO L354 Elim1Store]: treesize reduction 213, result has 13.4 percent of original size [2021-08-29 06:41:40,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 145 treesize of output 141 [2021-08-29 06:41:40,649 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-08-29 06:41:40,649 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 134 treesize of output 142 [2021-08-29 06:41:40,836 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-08-29 06:41:40,837 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 113 treesize of output 73 [2021-08-29 06:41:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:40,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:48,707 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem18_13| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_22| (_ BitVec 32)) (|ULTIMATE.start_testTwo_~#f1~1.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_23| (_ BitVec 32))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_23|)))) (let ((.cse1 (store (store (store (select .cse3 |v_ULTIMATE.start_returnsField_~#c~0.base_22|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (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_testTwo_#t~mem18_13|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem18_13|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem18_13|)))) (not (= |c_ULTIMATE.start_returnsField_#res| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_23|)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_22|))) (not (= (select (select (let ((.cse2 (store .cse3 |v_ULTIMATE.start_returnsField_~#c~0.base_22| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem18_13|))) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|) |v_ULTIMATE.start_testTwo_#t~mem18_13|)))))) is different from false [2021-08-29 06:41:48,736 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 06:41:48,737 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 859 treesize of output 784 [2021-08-29 06:41:48,811 INFO L354 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2021-08-29 06:41:48,812 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 784 treesize of output 786 [2021-08-29 06:41:48,855 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 06:41:48,856 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 791 treesize of output 805 [2021-08-29 06:41:48,881 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 06:41:48,881 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 768 treesize of output 768 [2021-08-29 06:41:50,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-29 06:41:50,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053345065] [2021-08-29 06:41:50,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:50,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 06:41:50,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:41:50,478 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 06:41:50,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-29 06:41:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:50,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 31 conjunts are in the unsatisfiable core [2021-08-29 06:41:50,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:50,611 INFO L354 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2021-08-29 06:41:50,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 40 [2021-08-29 06:41:50,736 INFO L354 Elim1Store]: treesize reduction 73, result has 25.5 percent of original size [2021-08-29 06:41:50,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 52 [2021-08-29 06:41:50,909 INFO L354 Elim1Store]: treesize reduction 73, result has 25.5 percent of original size [2021-08-29 06:41:50,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 71 treesize of output 86 [2021-08-29 06:41:50,915 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 72 treesize of output 76 [2021-08-29 06:41:51,110 INFO L354 Elim1Store]: treesize reduction 213, result has 13.4 percent of original size [2021-08-29 06:41:51,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 145 treesize of output 141 [2021-08-29 06:41:51,150 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-08-29 06:41:51,150 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 134 treesize of output 142 [2021-08-29 06:41:51,327 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-08-29 06:41:51,330 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 113 treesize of output 73 [2021-08-29 06:41:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:51,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:59,033 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_26| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem18_13| (_ BitVec 32)) (|ULTIMATE.start_testTwo_~#f1~1.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_25| (_ BitVec 32))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_25|)))) (let ((.cse1 (store (store (store (select .cse3 |v_ULTIMATE.start_returnsField_~#c~0.base_26|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (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_testTwo_#t~mem18_13|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem18_13|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem18_13|)))) (not (= (select (select (let ((.cse2 (store .cse3 |v_ULTIMATE.start_returnsField_~#c~0.base_26| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1.base|) |ULTIMATE.start_testTwo_~#f2~1.offset| |v_ULTIMATE.start_testTwo_#t~mem18_13|))) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |ULTIMATE.start_testTwo_~#f1~1.offset|) |v_ULTIMATE.start_testTwo_#t~mem18_13|)) (not (= |c_ULTIMATE.start_returnsField_#res| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_25|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_25|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_25|)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_26|))))))) is different from false [2021-08-29 06:41:59,077 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 06:41:59,077 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 536 treesize of output 461 [2021-08-29 06:41:59,145 INFO L354 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2021-08-29 06:41:59,145 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 461 treesize of output 463 [2021-08-29 06:41:59,195 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 06:41:59,195 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 468 treesize of output 482 [2021-08-29 06:41:59,219 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 06:41:59,220 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 445 treesize of output 445 [2021-08-29 06:42:00,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 06:42:00,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 7 treesize of output 6 [2021-08-29 06:42:00,468 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 20 treesize of output 18 [2021-08-29 06:42:00,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-29 06:42:00,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:42:00,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-29 06:42:00,560 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-29 06:42:00,561 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-29 06:42:00,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-08-29 06:42:00,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-08-29 06:42:00,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-08-29 06:42:00,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-08-29 06:42:00,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-08-29 06:42:00,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-29 06:42:00,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 06:42:01,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:42:01,175 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:42:01,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:42:01 BoogieIcfgContainer [2021-08-29 06:42:01,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:42:01,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:42:01,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:42:01,199 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:42:01,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:54" (3/4) ... [2021-08-29 06:42:01,201 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:42:01,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:42:01,202 INFO L158 Benchmark]: Toolchain (without parser) took 67098.70ms. Allocated memory was 65.0MB in the beginning and 197.1MB in the end (delta: 132.1MB). Free memory was 45.6MB in the beginning and 155.1MB in the end (delta: -109.5MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:01,202 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:01,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.97ms. Allocated memory is still 65.0MB. Free memory was 45.3MB in the beginning and 47.3MB in the end (delta: -2.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 06:42:01,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.19ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 44.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:01,203 INFO L158 Benchmark]: Boogie Preprocessor took 41.88ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 42.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:01,204 INFO L158 Benchmark]: RCFGBuilder took 363.38ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 54.9MB in the end (delta: -12.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:01,204 INFO L158 Benchmark]: TraceAbstraction took 66431.93ms. Allocated memory was 79.7MB in the beginning and 197.1MB in the end (delta: 117.4MB). Free memory was 54.2MB in the beginning and 155.1MB in the end (delta: -100.9MB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. [2021-08-29 06:42:01,204 INFO L158 Benchmark]: Witness Printer took 2.83ms. Allocated memory is still 197.1MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:01,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.97ms. Allocated memory is still 65.0MB. Free memory was 45.3MB in the beginning and 47.3MB in the end (delta: -2.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.19ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 44.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.88ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 42.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.38ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 54.9MB in the end (delta: -12.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 66431.93ms. Allocated memory was 79.7MB in the beginning and 197.1MB in the end (delta: 117.4MB). Free memory was 54.2MB in the beginning and 155.1MB in the end (delta: -100.9MB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. * Witness Printer took 2.83ms. Allocated memory is still 197.1MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L139] ieee754_float f1, f2; [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] f1 = returnsStructure(0) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative [L144] COND FALSE !(!(f1.ieee.negative != f2.ieee.negative)) [L146] return; [L146] return; [L151] ieee754_float f1, f2; [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; [L153] f1 = returnsStructure(0) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L154] f2 = returnsStructure(1) [L156] EXPR f1.ieee.negative [L156] EXPR f2.ieee.negative [L156] COND FALSE !(!(f1.ieee.negative != f2.ieee.negative)) [L118] ieee754_float c; [L120] c.ieee.negative = index & 0x1 [L121] c.ieee.exponent = 0 [L122] c.ieee.mantissa = 0 [L124] EXPR c.f [L124] return c.f; [L124] return c.f; [L158] f1.f = returnsField(0) [L118] ieee754_float c; [L120] c.ieee.negative = index & 0x1 [L121] c.ieee.exponent = 0 [L122] c.ieee.mantissa = 0 [L124] EXPR c.f [L124] return c.f; [L124] return c.f; [L159] f2.f = returnsField(1) [L161] EXPR f1.ieee.negative [L161] EXPR f2.ieee.negative [L161] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L161] reach_error() - UnprovableResult [Line: 144]: 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: 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: 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 1 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 66360.78ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 15.71ms, AutomataDifference: 2419.72ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.80ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 265.65ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 228.99ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 116 IncrementalHoareTripleChecker+Unchecked, 132 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 141 mSolverCounterSat, 2.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 25796.09ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 15.13ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 54.02ms SsaConstructionTime, 207.16ms SatisfiabilityAnalysisTime, 28027.63ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 8 QuantifiedInterpolants, 1097 SizeOfPredicates, 48 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2021-08-29 06:42:01,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...