./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/float-benchs/interpolation2.c.v+nlh-reducer.c -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 b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:12:45,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:12:45,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:12:45,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:12:45,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:12:45,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:12:45,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:12:45,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:12:45,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:12:45,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:12:45,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:12:45,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:12:45,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:12:45,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:12:45,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:12:45,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:12:45,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:12:45,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:12:45,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:12:45,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:12:45,403 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:12:45,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:12:45,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:12:45,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:12:45,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:12:45,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:12:45,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:12:45,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:12:45,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:12:45,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:12:45,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:12:45,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:12:45,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:12:45,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:12:45,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:12:45,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:12:45,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:12:45,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:12:45,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:12:45,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:12:45,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:12:45,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:12:45,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:12:45,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:12:45,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:12:45,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:12:45,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:12:45,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:12:45,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:12:45,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:12:45,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:12:45,442 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:12:45,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:12:45,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:12:45,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:12:45,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:12:45,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:12:45,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:12:45,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:12:45,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:12:45,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:12:45,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:12:45,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:12:45,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:12:45,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:12:45,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:12:45,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:12:45,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:12:45,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:12:45,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:12:45,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:12:45,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:12:45,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:12:45,447 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:12:45,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:12:45,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:12:45,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f [2022-07-13 14:12:45,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:12:45,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:12:45,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:12:45,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:12:45,645 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:12:45,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-07-13 14:12:45,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2f3f25f/aaf51005fb0d42c4ac86b535708f0d2c/FLAG1a7b42930 [2022-07-13 14:12:46,051 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:12:46,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-07-13 14:12:46,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2f3f25f/aaf51005fb0d42c4ac86b535708f0d2c/FLAG1a7b42930 [2022-07-13 14:12:46,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2f3f25f/aaf51005fb0d42c4ac86b535708f0d2c [2022-07-13 14:12:46,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:12:46,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:12:46,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:12:46,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:12:46,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:12:46,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fa2950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46, skipping insertion in model container [2022-07-13 14:12:46,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:12:46,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:12:46,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-07-13 14:12:46,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:12:46,635 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:12:46,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-07-13 14:12:46,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:12:46,670 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:12:46,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46 WrapperNode [2022-07-13 14:12:46,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:12:46,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:12:46,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:12:46,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:12:46,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,697 INFO L137 Inliner]: procedures = 18, calls = 78, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 199 [2022-07-13 14:12:46,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:12:46,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:12:46,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:12:46,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:12:46,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:12:46,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:12:46,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:12:46,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:12:46,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (1/1) ... [2022-07-13 14:12:46,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:12:46,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:12:46,763 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) [2022-07-13 14:12:46,768 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 [2022-07-13 14:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-13 14:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:12:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-13 14:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:12:46,837 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:12:46,838 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:12:46,955 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:12:46,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:12:46,974 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:12:46,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:12:46 BoogieIcfgContainer [2022-07-13 14:12:46,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:12:46,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:12:46,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:12:46,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:12:46,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:12:46" (1/3) ... [2022-07-13 14:12:46,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4423ccd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:12:46, skipping insertion in model container [2022-07-13 14:12:46,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:46" (2/3) ... [2022-07-13 14:12:46,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4423ccd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:12:46, skipping insertion in model container [2022-07-13 14:12:46,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:12:46" (3/3) ... [2022-07-13 14:12:46,981 INFO L111 eAbstractionObserver]: Analyzing ICFG interpolation2.c.v+nlh-reducer.c [2022-07-13 14:12:46,991 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:12:46,992 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:12:47,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:12:47,033 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@531ea932, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3981acca [2022-07-13 14:12:47,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:12:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 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) [2022-07-13 14:12:47,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 14:12:47,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:12:47,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:12:47,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:12:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:12:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2022-07-13 14:12:47,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:12:47,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861362607] [2022-07-13 14:12:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:12:47,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:12:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:12:47,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:12:47,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:12:47,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861362607] [2022-07-13 14:12:47,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861362607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:12:47,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:12:47,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 14:12:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634584982] [2022-07-13 14:12:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:12:47,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 14:12:47,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:12:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 14:12:47,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:12:47,265 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 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 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-07-13 14:12:47,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:12:47,353 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-07-13 14:12:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:12:47,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-07-13 14:12:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:12:47,366 INFO L225 Difference]: With dead ends: 41 [2022-07-13 14:12:47,366 INFO L226 Difference]: Without dead ends: 22 [2022-07-13 14:12:47,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 14:12:47,372 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:12:47,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:12:47,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-13 14:12:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-13 14:12:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2022-07-13 14:12:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-07-13 14:12:47,397 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2022-07-13 14:12:47,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:12:47,398 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-07-13 14:12:47,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-07-13 14:12:47,398 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-07-13 14:12:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 14:12:47,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:12:47,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:12:47,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:12:47,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:12:47,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:12:47,402 INFO L85 PathProgramCache]: Analyzing trace with hash 792769235, now seen corresponding path program 1 times [2022-07-13 14:12:47,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:12:47,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804158451] [2022-07-13 14:12:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:12:47,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:12:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:12:47,444 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:12:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:12:47,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:12:47,474 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:12:47,475 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:12:47,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:12:47,479 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 14:12:47,481 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:12:47,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:12:47 BoogieIcfgContainer [2022-07-13 14:12:47,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:12:47,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:12:47,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:12:47,502 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:12:47,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:12:46" (3/4) ... [2022-07-13 14:12:47,508 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:12:47,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:12:47,509 INFO L158 Benchmark]: Toolchain (without parser) took 1042.20ms. Allocated memory is still 125.8MB. Free memory was 92.9MB in the beginning and 89.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-07-13 14:12:47,509 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:12:47,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.50ms. Allocated memory is still 125.8MB. Free memory was 92.8MB in the beginning and 99.1MB in the end (delta: -6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:12:47,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.59ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 97.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:12:47,511 INFO L158 Benchmark]: Boogie Preprocessor took 38.02ms. Allocated memory is still 125.8MB. Free memory was 97.1MB in the beginning and 95.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:12:47,512 INFO L158 Benchmark]: RCFGBuilder took 239.01ms. Allocated memory is still 125.8MB. Free memory was 95.5MB in the beginning and 82.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 14:12:47,512 INFO L158 Benchmark]: TraceAbstraction took 524.98ms. Allocated memory is still 125.8MB. Free memory was 81.9MB in the beginning and 89.5MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:12:47,512 INFO L158 Benchmark]: Witness Printer took 6.36ms. Allocated memory is still 125.8MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:12:47,514 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 83.9MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.50ms. Allocated memory is still 125.8MB. Free memory was 92.8MB in the beginning and 99.1MB in the end (delta: -6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.59ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 97.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.02ms. Allocated memory is still 125.8MB. Free memory was 97.1MB in the beginning and 95.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 239.01ms. Allocated memory is still 125.8MB. Free memory was 95.5MB in the beginning and 82.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 524.98ms. Allocated memory is still 125.8MB. Free memory was 81.9MB in the beginning and 89.5MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.36ms. Allocated memory is still 125.8MB. Free memory is still 89.5MB. 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 53]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L1] int __return_main; [L12] int __return_136; VAL [__return_136=0, __return_main=0] [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] float main__org[5] = { 1, 5, -10, 30, 20 }; [L21] float main__slope[5] = { 4, -15, 40, -10, 0 }; [L22] main__t = __VERIFIER_nondet_float() [L23] int main____CPAchecker_TMP_0; [L24] EXPR main__min[0] VAL [__return_136=0, __return_main=0, main__max={6:0}, main__min={7:0}, main__min[0]=49, main__org={4:0}, main__slope={5:0}] [L24] COND TRUE main__t >= (main__min[0]) [L26] EXPR main__max[4UL] VAL [__return_136=0, __return_main=0, main__max={6:0}, main__max[4UL]=51, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L26] COND TRUE main__t <= (main__max[4UL]) [L28] main____CPAchecker_TMP_0 = 1 VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L29] COND TRUE main____CPAchecker_TMP_0 != 0 [L31] main__i = 0 VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L32] COND TRUE main__i < 5UL [L34] EXPR main__max[main__i] VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__max[main__i]=50, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L34] COND TRUE main__t <= (main__max[main__i]) [L38] EXPR main__org[main__i] [L38] EXPR main__slope[main__i] [L38] EXPR main__min[main__i] [L38] EXPR main__max[main__i] [L38] EXPR main__min[main__i] [L38] main__z = (main__org[main__i]) + (((main__slope[main__i]) * (main__t - (main__min[main__i]))) / ((main__max[main__i]) - (main__min[main__i]))) [L39] int main____CPAchecker_TMP_1; VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L40] COND FALSE !(main__z >= -10.0) VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L66] main____CPAchecker_TMP_1 = 0 VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L47] int __tmp_1; [L48] __tmp_1 = main____CPAchecker_TMP_1 [L49] int __VERIFIER_assert__cond; [L50] __VERIFIER_assert__cond = __tmp_1 VAL [__return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L51] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L53] reach_error() VAL [__return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 37 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 14:12:47,550 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/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/float-benchs/interpolation2.c.v+nlh-reducer.c -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 b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:12:49,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:12:49,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:12:49,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:12:49,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:12:49,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:12:49,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:12:49,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:12:49,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:12:49,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:12:49,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:12:49,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:12:49,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:12:49,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:12:49,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:12:49,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:12:49,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:12:49,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:12:49,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:12:49,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:12:49,208 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:12:49,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:12:49,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:12:49,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:12:49,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:12:49,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:12:49,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:12:49,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:12:49,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:12:49,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:12:49,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:12:49,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:12:49,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:12:49,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:12:49,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:12:49,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:12:49,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:12:49,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:12:49,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:12:49,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:12:49,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:12:49,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:12:49,227 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:12:49,254 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:12:49,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:12:49,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:12:49,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:12:49,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:12:49,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:12:49,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:12:49,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:12:49,256 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:12:49,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:12:49,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:12:49,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:12:49,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:12:49,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:12:49,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:12:49,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:12:49,258 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:12:49,258 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:12:49,258 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:12:49,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:12:49,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:12:49,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:12:49,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:12:49,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:12:49,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:12:49,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:12:49,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:12:49,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:12:49,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:12:49,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:12:49,260 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:12:49,260 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:12:49,260 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:12:49,261 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:12:49,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:12:49,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:12:49,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f [2022-07-13 14:12:49,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:12:49,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:12:49,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:12:49,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:12:49,531 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:12:49,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-07-13 14:12:49,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12fb4b85/6f97d3f646ad4cdd9de97c9ef03a1eec/FLAG7901d4de4 [2022-07-13 14:12:49,888 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:12:49,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-07-13 14:12:49,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12fb4b85/6f97d3f646ad4cdd9de97c9ef03a1eec/FLAG7901d4de4 [2022-07-13 14:12:50,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12fb4b85/6f97d3f646ad4cdd9de97c9ef03a1eec [2022-07-13 14:12:50,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:12:50,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:12:50,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:12:50,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:12:50,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:12:50,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7e4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50, skipping insertion in model container [2022-07-13 14:12:50,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:12:50,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:12:50,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-07-13 14:12:50,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:12:50,497 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:12:50,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-07-13 14:12:50,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:12:50,566 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:12:50,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50 WrapperNode [2022-07-13 14:12:50,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:12:50,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:12:50,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:12:50,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:12:50,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,616 INFO L137 Inliner]: procedures = 19, calls = 78, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 200 [2022-07-13 14:12:50,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:12:50,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:12:50,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:12:50,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:12:50,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:12:50,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:12:50,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:12:50,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:12:50,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (1/1) ... [2022-07-13 14:12:50,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:12:50,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:12:50,695 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) [2022-07-13 14:12:50,702 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 [2022-07-13 14:12:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:12:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-13 14:12:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:12:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:12:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-13 14:12:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:12:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:12:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:12:50,783 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:12:50,784 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:12:53,327 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:12:53,331 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:12:53,331 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:12:53,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:12:53 BoogieIcfgContainer [2022-07-13 14:12:53,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:12:53,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:12:53,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:12:53,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:12:53,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:12:50" (1/3) ... [2022-07-13 14:12:53,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4ccbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:12:53, skipping insertion in model container [2022-07-13 14:12:53,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:12:50" (2/3) ... [2022-07-13 14:12:53,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4ccbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:12:53, skipping insertion in model container [2022-07-13 14:12:53,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:12:53" (3/3) ... [2022-07-13 14:12:53,340 INFO L111 eAbstractionObserver]: Analyzing ICFG interpolation2.c.v+nlh-reducer.c [2022-07-13 14:12:53,351 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:12:53,351 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:12:53,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:12:53,398 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@334aecf6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b21142 [2022-07-13 14:12:53,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:12:53,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 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) [2022-07-13 14:12:53,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 14:12:53,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:12:53,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:12:53,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:12:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:12:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2022-07-13 14:12:53,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:12:53,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376305127] [2022-07-13 14:12:53,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:12:53,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:12:53,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:12:53,432 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) [2022-07-13 14:12:53,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:12:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:12:53,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 14:12:53,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:12:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:12:53,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:12:53,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:12:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376305127] [2022-07-13 14:12:53,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376305127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:12:53,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:12:53,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 14:12:53,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582999410] [2022-07-13 14:12:53,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:12:53,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 14:12:53,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:12:53,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 14:12:53,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:12:53,873 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 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 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-07-13 14:12:56,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 14:12:56,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:12:56,236 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2022-07-13 14:12:56,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 14:12:56,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-07-13 14:12:56,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:12:56,243 INFO L225 Difference]: With dead ends: 35 [2022-07-13 14:12:56,244 INFO L226 Difference]: Without dead ends: 22 [2022-07-13 14:12:56,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:12:56,247 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-13 14:12:56,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 102 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-13 14:12:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-13 14:12:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-13 14:12:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2022-07-13 14:12:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-07-13 14:12:56,267 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2022-07-13 14:12:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:12:56,267 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-07-13 14:12:56,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-07-13 14:12:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-07-13 14:12:56,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 14:12:56,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:12:56,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:12:56,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:12:56,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:12:56,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:12:56,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:12:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash 792769235, now seen corresponding path program 1 times [2022-07-13 14:12:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:12:56,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682131687] [2022-07-13 14:12:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:12:56,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:12:56,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:12:56,479 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) [2022-07-13 14:12:56,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:12:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:12:57,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 14:12:57,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:13:02,219 INFO L356 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2022-07-13 14:13:02,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 266 treesize of output 146 [2022-07-13 14:13:26,394 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_3 (_ BitVec 32))) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32)) (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv1 32)) .cse0) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse1) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse1) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)) .cse2) (= |c_ULTIMATE.start_main_~main__z~0#1| (fp.add c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode |ULTIMATE.start_main_~main__t~0#1| .cse1)) (fp.sub c_currentRoundingMode .cse2 .cse1)))) (= .cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv4 32))) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse2)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:13:58,097 WARN L833 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse0) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv1 32))) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse0) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse0)) (fp.sub roundNearestTiesToEven .cse3 .cse0)))) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse3) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse3) (= .cse2 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4 32)))))) is different from false [2022-07-13 14:14:00,130 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse0) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv1 32))) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse0) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse0)) (fp.sub roundNearestTiesToEven .cse3 .cse0)))) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse3) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse3) (= .cse2 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4 32)))))) is different from true [2022-07-13 14:15:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:15:30,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:15:30,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:15:30,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682131687] [2022-07-13 14:15:30,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682131687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:15:30,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:15:30,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 14:15:30,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388416308] [2022-07-13 14:15:30,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:15:30,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 14:15:30,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:15:30,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 14:15:30,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=47, Unknown=3, NotChecked=30, Total=110 [2022-07-13 14:15:30,982 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-07-13 14:15:33,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 14:15:33,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:15:33,854 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-07-13 14:15:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 14:15:33,855 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 13 [2022-07-13 14:15:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:15:33,856 INFO L225 Difference]: With dead ends: 29 [2022-07-13 14:15:33,856 INFO L226 Difference]: Without dead ends: 24 [2022-07-13 14:15:33,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=30, Invalid=47, Unknown=3, NotChecked=30, Total=110 [2022-07-13 14:15:33,857 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-13 14:15:33,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 17 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 1 Unknown, 46 Unchecked, 2.9s Time] [2022-07-13 14:15:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-13 14:15:33,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-13 14:15:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 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) [2022-07-13 14:15:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-13 14:15:33,862 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 13 [2022-07-13 14:15:33,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:15:33,862 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-13 14:15:33,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-07-13 14:15:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-07-13 14:15:33,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 14:15:33,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:15:33,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:15:33,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-13 14:15:34,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:15:34,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:15:34,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:15:34,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1710804433, now seen corresponding path program 1 times [2022-07-13 14:15:34,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:15:34,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915450012] [2022-07-13 14:15:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:15:34,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:15:34,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:15:34,083 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) [2022-07-13 14:15:34,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:15:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:15:35,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-13 14:15:35,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:15:43,136 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 33 DAG size of output: 17 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-07-13 14:15:43,137 INFO L356 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2022-07-13 14:15:43,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 266 treesize of output 146 [2022-07-13 14:16:06,309 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_8 (_ BitVec 32))) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32)) (fp ((_ extract 31 31) v_arrayElimCell_8) ((_ extract 30 23) v_arrayElimCell_8) ((_ extract 22 0) v_arrayElimCell_8)))) (exists ((v_arrayElimCell_10 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_9 (_ BitVec 32)) (v_arrayElimCell_7 (_ BitVec 32)) (v_arrayElimCell_6 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_10) ((_ extract 30 23) v_arrayElimCell_10) ((_ extract 22 0) v_arrayElimCell_10))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_9) ((_ extract 30 23) v_arrayElimCell_9) ((_ extract 22 0) v_arrayElimCell_9))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv4 32)) .cse0) (= (fp.add c_currentRoundingMode .cse1 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode |ULTIMATE.start_main_~main__t~0#1| .cse2)) (fp.sub c_currentRoundingMode .cse3 .cse2))) |c_ULTIMATE.start_main_~main__z~0#1|) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse3) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv1 32)) .cse1) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)) .cse3) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse2) (= .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:16:32,815 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_8 (_ BitVec 32))) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32)) (fp ((_ extract 31 31) v_arrayElimCell_8) ((_ extract 30 23) v_arrayElimCell_8) ((_ extract 22 0) v_arrayElimCell_8)))) (exists ((v_arrayElimCell_10 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_9 (_ BitVec 32)) (v_arrayElimCell_7 (_ BitVec 32)) (v_arrayElimCell_6 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_10) ((_ extract 30 23) v_arrayElimCell_10) ((_ extract 22 0) v_arrayElimCell_10))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_9) ((_ extract 30 23) v_arrayElimCell_9) ((_ extract 22 0) v_arrayElimCell_9))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv4 32)) .cse0) (= (fp.add c_currentRoundingMode .cse1 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode |ULTIMATE.start_main_~main__t~0#1| .cse2)) (fp.sub c_currentRoundingMode .cse3 .cse2))) |c_ULTIMATE.start_main_~main__z~0#1|) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse3) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv1 32)) .cse1) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)) .cse3) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse2) (= .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)))))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~main__z~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:17:09,850 WARN L833 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_10 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_9 (_ BitVec 32)) (v_arrayElimCell_7 (_ BitVec 32)) (v_arrayElimCell_6 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_arrayElimCell_10) ((_ extract 30 23) v_arrayElimCell_10) ((_ extract 22 0) v_arrayElimCell_10))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_9) ((_ extract 30 23) v_arrayElimCell_9) ((_ extract 22 0) v_arrayElimCell_9))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse4 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse3)) (fp.sub roundNearestTiesToEven .cse2 .cse3)))))) (and (fp.geq .cse0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 30.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4 32)) .cse1) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse2) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse2) (= .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse3) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv1 32)) .cse4))))) is different from false [2022-07-13 14:17:11,885 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_10 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_9 (_ BitVec 32)) (v_arrayElimCell_7 (_ BitVec 32)) (v_arrayElimCell_6 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_arrayElimCell_10) ((_ extract 30 23) v_arrayElimCell_10) ((_ extract 22 0) v_arrayElimCell_10))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_9) ((_ extract 30 23) v_arrayElimCell_9) ((_ extract 22 0) v_arrayElimCell_9))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse4 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse3)) (fp.sub roundNearestTiesToEven .cse2 .cse3)))))) (and (fp.geq .cse0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 30.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4 32)) .cse1) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse2) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse2) (= .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse3) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv1 32)) .cse4))))) is different from true