./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.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-newlib/float_req_bl_1121b.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 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:55:45,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:55:45,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:55:45,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:55:45,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:55:45,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:55:45,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:55:45,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:55:45,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:55:45,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:55:45,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:55:45,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:55:45,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:55:45,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:55:45,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:55:45,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:55:45,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:55:45,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:55:45,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:55:45,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:55:45,433 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:55:45,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:55:45,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:55:45,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:55:45,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:55:45,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:55:45,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:55:45,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:55:45,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:55:45,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:55:45,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:55:45,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:55:45,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:55:45,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:55:45,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:55:45,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:55:45,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:55:45,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:55:45,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:55:45,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:55:45,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:55:45,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:55:45,453 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:55:45,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:55:45,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:55:45,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:55:45,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:55:45,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:55:45,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:55:45,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:55:45,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:55:45,477 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:55:45,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:55:45,477 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:55:45,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:55:45,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:55:45,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:55:45,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:55:45,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:55:45,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:55:45,479 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:55:45,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:55:45,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:55:45,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:55:45,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:55:45,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:55:45,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:55:45,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:45,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:55:45,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:55:45,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:55:45,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:55:45,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:55:45,482 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:55:45,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:55:45,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:55:45,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e [2022-07-13 14:55:45,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:55:45,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:55:45,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:55:45,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:55:45,706 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:55:45,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2022-07-13 14:55:45,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65902051c/3c3757272448424798b9d4fc949b05de/FLAGbbef175ff [2022-07-13 14:55:46,152 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:55:46,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2022-07-13 14:55:46,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65902051c/3c3757272448424798b9d4fc949b05de/FLAGbbef175ff [2022-07-13 14:55:46,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65902051c/3c3757272448424798b9d4fc949b05de [2022-07-13 14:55:46,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:55:46,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:55:46,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:46,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:55:46,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:55:46,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711965ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46, skipping insertion in model container [2022-07-13 14:55:46,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:55:46,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:55:46,488 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-newlib/float_req_bl_1121b.c[2700,2713] [2022-07-13 14:55:46,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:46,498 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:55:46,523 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-newlib/float_req_bl_1121b.c[2700,2713] [2022-07-13 14:55:46,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:46,546 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:55:46,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46 WrapperNode [2022-07-13 14:55:46,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:46,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:46,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:55:46,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:55:46,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,590 INFO L137 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 205 [2022-07-13 14:55:46,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:46,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:55:46,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:55:46,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:55:46,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:55:46,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:55:46,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:55:46,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:55:46,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (1/1) ... [2022-07-13 14:55:46,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:46,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:55:46,659 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 14:55:46,661 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 14:55:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:55:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-13 14:55:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:55:46,750 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:55:46,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:55:47,032 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:55:47,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:55:47,038 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-13 14:55:47,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:47 BoogieIcfgContainer [2022-07-13 14:55:47,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:55:47,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:55:47,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:55:47,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:55:47,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:55:46" (1/3) ... [2022-07-13 14:55:47,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcf9084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:47, skipping insertion in model container [2022-07-13 14:55:47,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:46" (2/3) ... [2022-07-13 14:55:47,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcf9084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:47, skipping insertion in model container [2022-07-13 14:55:47,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:47" (3/3) ... [2022-07-13 14:55:47,048 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2022-07-13 14:55:47,065 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:55:47,065 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:55:47,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:55:47,122 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@63a467b2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@46ea7c03 [2022-07-13 14:55:47,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:55:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.8076923076923077) internal successors, (94), 53 states have internal predecessors, (94), 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 14:55:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 14:55:47,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:47,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:47,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:47,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1366069876, now seen corresponding path program 1 times [2022-07-13 14:55:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:55:47,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813327456] [2022-07-13 14:55:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:47,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:55:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:47,281 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 14:55:47,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:55:47,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813327456] [2022-07-13 14:55:47,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813327456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:47,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:47,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:55:47,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914558482] [2022-07-13 14:55:47,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:47,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:55:47,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:55:47,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:55:47,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:47,314 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.8076923076923077) internal successors, (94), 53 states have internal predecessors, (94), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 14:55:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:47,333 INFO L93 Difference]: Finished difference Result 106 states and 186 transitions. [2022-07-13 14:55:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:55:47,335 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 14:55:47,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:47,342 INFO L225 Difference]: With dead ends: 106 [2022-07-13 14:55:47,342 INFO L226 Difference]: Without dead ends: 51 [2022-07-13 14:55:47,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:47,347 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:55:47,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:55:47,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-13 14:55:47,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-13 14:55:47,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.4) internal successors, (70), 50 states have internal predecessors, (70), 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 14:55:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-07-13 14:55:47,376 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 11 [2022-07-13 14:55:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:47,376 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-07-13 14:55:47,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 14:55:47,377 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-07-13 14:55:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 14:55:47,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:47,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:47,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:55:47,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1947332695, now seen corresponding path program 1 times [2022-07-13 14:55:47,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:55:47,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397334091] [2022-07-13 14:55:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:47,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:55:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:55:47,452 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:55:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:55:47,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:55:47,539 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:55:47,541 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:55:47,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:55:47,549 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 14:55:47,553 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:55:47,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:55:47 BoogieIcfgContainer [2022-07-13 14:55:47,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:55:47,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:55:47,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:55:47,584 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:55:47,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:47" (3/4) ... [2022-07-13 14:55:47,586 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:55:47,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:55:47,586 INFO L158 Benchmark]: Toolchain (without parser) took 1406.43ms. Allocated memory is still 96.5MB. Free memory was 62.4MB in the beginning and 50.6MB in the end (delta: 11.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-07-13 14:55:47,587 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 79.7MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 23.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:47,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.43ms. Allocated memory is still 96.5MB. Free memory was 62.3MB in the beginning and 71.1MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:55:47,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.62ms. Allocated memory is still 96.5MB. Free memory was 71.1MB in the beginning and 68.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 14:55:47,588 INFO L158 Benchmark]: Boogie Preprocessor took 33.12ms. Allocated memory is still 96.5MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:47,589 INFO L158 Benchmark]: RCFGBuilder took 414.04ms. Allocated memory is still 96.5MB. Free memory was 66.9MB in the beginning and 50.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 14:55:47,589 INFO L158 Benchmark]: TraceAbstraction took 541.72ms. Allocated memory is still 96.5MB. Free memory was 49.4MB in the beginning and 51.4MB in the end (delta: -2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:47,590 INFO L158 Benchmark]: Witness Printer took 2.58ms. Allocated memory is still 96.5MB. Free memory was 51.1MB in the beginning and 50.6MB in the end (delta: 445.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:55:47,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 79.7MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 23.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.43ms. Allocated memory is still 96.5MB. Free memory was 62.3MB in the beginning and 71.1MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.62ms. Allocated memory is still 96.5MB. Free memory was 71.1MB in the beginning and 68.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.12ms. Allocated memory is still 96.5MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.04ms. Allocated memory is still 96.5MB. Free memory was 66.9MB in the beginning and 50.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 541.72ms. Allocated memory is still 96.5MB. Free memory was 49.4MB in the beginning and 51.4MB in the end (delta: -2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.58ms. Allocated memory is still 96.5MB. Free memory was 51.1MB in the beginning and 50.6MB in the end (delta: 445.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 124]: 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 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 34, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of bitwiseXOr at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L118] float x = __VERIFIER_nondet_float(); [L119] float y = -0.0f; [L120] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967299, \old(y)=4294967297, one_fmod=1, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 VAL [\old(x)=4294967299, \old(y)=4294967297, hx=0, hy=-1, one_fmod=1, sx=0, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967299, \old(y)=4294967297, hx=0, hy=0, one_fmod=1, sx=0, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967299, \old(y)=4294967297, hx=0, hy=0, one_fmod=1, sx=0, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L120] RET, EXPR fmod_float(x, y) [L120] float res = fmod_float(x, y); [L123] CALL, EXPR isnan_float(res) [L110] return x != x; VAL [\old(x)=4294967298, \result=0, one_fmod=1, x=4294967298, Zero_fmod={4:0}] [L123] RET, EXPR isnan_float(res) [L123] COND TRUE !isnan_float(res) [L124] reach_error() VAL [one_fmod=1, res=4294967298, x=4294967299, y=4294967297, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 14:55:47,627 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-newlib/float_req_bl_1121b.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 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:55:49,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:55:49,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:55:49,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:55:49,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:55:49,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:55:49,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:55:49,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:55:49,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:55:49,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:55:49,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:55:49,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:55:49,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:55:49,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:55:49,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:55:49,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:55:49,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:55:49,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:55:49,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:55:49,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:55:49,649 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:55:49,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:55:49,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:55:49,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:55:49,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:55:49,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:55:49,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:55:49,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:55:49,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:55:49,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:55:49,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:55:49,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:55:49,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:55:49,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:55:49,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:55:49,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:55:49,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:55:49,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:55:49,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:55:49,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:55:49,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:55:49,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:55:49,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:55:49,711 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:55:49,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:55:49,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:55:49,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:55:49,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:55:49,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:55:49,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:55:49,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:55:49,714 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:55:49,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:55:49,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:55:49,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:55:49,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:55:49,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:55:49,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:55:49,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:55:49,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:55:49,717 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:55:49,717 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:55:49,717 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:55:49,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:55:49,717 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:55:49,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:55:49,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:55:49,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:55:49,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:55:49,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:49,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:55:49,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:55:49,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:55:49,719 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:55:49,719 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:55:49,720 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:55:49,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:55:49,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:55:49,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:55:49,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e [2022-07-13 14:55:50,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:55:50,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:55:50,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:55:50,052 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:55:50,052 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:55:50,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2022-07-13 14:55:50,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8679158/3e5aad457dce43e3bb9639a41734f3fc/FLAG27fd50ffd [2022-07-13 14:55:50,555 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:55:50,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2022-07-13 14:55:50,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8679158/3e5aad457dce43e3bb9639a41734f3fc/FLAG27fd50ffd [2022-07-13 14:55:50,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8679158/3e5aad457dce43e3bb9639a41734f3fc [2022-07-13 14:55:50,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:55:50,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:55:50,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:50,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:55:50,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:55:50,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:50" (1/1) ... [2022-07-13 14:55:50,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27297239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:50, skipping insertion in model container [2022-07-13 14:55:50,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:50" (1/1) ... [2022-07-13 14:55:50,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:55:50,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:55:51,206 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-newlib/float_req_bl_1121b.c[2700,2713] [2022-07-13 14:55:51,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:51,243 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:55:51,291 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-newlib/float_req_bl_1121b.c[2700,2713] [2022-07-13 14:55:51,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:51,319 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:55:51,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51 WrapperNode [2022-07-13 14:55:51,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:51,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:51,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:55:51,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:55:51,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,382 INFO L137 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2022-07-13 14:55:51,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:51,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:55:51,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:55:51,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:55:51,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:55:51,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:55:51,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:55:51,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:55:51,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (1/1) ... [2022-07-13 14:55:51,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:51,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:55:51,489 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 14:55:51,515 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 14:55:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:55:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-13 14:55:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:55:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:55:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-13 14:55:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-13 14:55:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:55:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:55:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-13 14:55:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-13 14:55:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:55:51,623 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:55:51,624 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:55:54,166 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:55:54,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:55:54,172 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-13 14:55:54,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:54 BoogieIcfgContainer [2022-07-13 14:55:54,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:55:54,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:55:54,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:55:54,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:55:54,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:55:50" (1/3) ... [2022-07-13 14:55:54,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2986137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:54, skipping insertion in model container [2022-07-13 14:55:54,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:51" (2/3) ... [2022-07-13 14:55:54,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2986137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:54, skipping insertion in model container [2022-07-13 14:55:54,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:54" (3/3) ... [2022-07-13 14:55:54,181 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2022-07-13 14:55:54,195 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:55:54,196 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:55:54,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:55:54,245 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@7b5d6688, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1dc88fa7 [2022-07-13 14:55:54,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:55:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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 14:55:54,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 14:55:54,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:54,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:54,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:54,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:54,262 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2022-07-13 14:55:54,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:55:54,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800461320] [2022-07-13 14:55:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:54,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:55:54,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:55:54,279 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 14:55:54,321 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 14:55:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:54,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:55:54,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:55:54,593 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 14:55:54,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:55:54,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:55:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800461320] [2022-07-13 14:55:54,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800461320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:54,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:54,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:55:54,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700888492] [2022-07-13 14:55:54,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:54,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:55:54,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:55:54,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:55:54,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:54,634 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:54,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:54,657 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2022-07-13 14:55:54,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:55:54,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-13 14:55:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:54,666 INFO L225 Difference]: With dead ends: 82 [2022-07-13 14:55:54,666 INFO L226 Difference]: Without dead ends: 39 [2022-07-13 14:55:54,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:54,674 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:55:54,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:55:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-13 14:55:54,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-13 14:55:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 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 14:55:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-07-13 14:55:54,719 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2022-07-13 14:55:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:54,720 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-07-13 14:55:54,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2022-07-13 14:55:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:55:54,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:54,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:54,740 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 14:55:54,935 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 14:55:54,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:54,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:54,936 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2022-07-13 14:55:54,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:55:54,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936809211] [2022-07-13 14:55:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:54,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:55:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:55:54,945 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 14:55:54,948 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 14:55:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:55,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 14:55:55,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:55:58,455 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 14:55:58,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:55:58,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:55:58,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936809211] [2022-07-13 14:55:58,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936809211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:58,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:58,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:55:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429400499] [2022-07-13 14:55:58,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:58,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:55:58,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:55:58,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:55:58,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:55:58,461 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 14:55:59,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:56:01,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:01,928 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2022-07-13 14:56:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:56:01,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-07-13 14:56:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:01,940 INFO L225 Difference]: With dead ends: 44 [2022-07-13 14:56:01,940 INFO L226 Difference]: Without dead ends: 39 [2022-07-13 14:56:01,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-13 14:56:01,942 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 93 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:01,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 190 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 10 Unchecked, 1.6s Time] [2022-07-13 14:56:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-13 14:56:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-13 14:56:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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 14:56:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2022-07-13 14:56:01,947 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2022-07-13 14:56:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:01,948 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2022-07-13 14:56:01,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 14:56:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2022-07-13 14:56:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 14:56:01,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:01,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:01,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:02,149 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 14:56:02,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:02,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2022-07-13 14:56:02,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:02,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577600746] [2022-07-13 14:56:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:02,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:02,153 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 14:56:02,154 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 14:56:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:02,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:56:02,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:02,401 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 14:56:02,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:02,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:02,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577600746] [2022-07-13 14:56:02,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577600746] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:02,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:02,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 14:56:02,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862989165] [2022-07-13 14:56:02,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:02,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 14:56:02,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:02,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 14:56:02,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:56:02,404 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. 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 14:56:02,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:02,496 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2022-07-13 14:56:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 14:56:02,497 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 14:56:02,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:02,497 INFO L225 Difference]: With dead ends: 39 [2022-07-13 14:56:02,497 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 14:56:02,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:02,499 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:02,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-07-13 14:56:02,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 14:56:02,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 14:56:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 14:56:02,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 14:56:02,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-07-13 14:56:02,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:02,501 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 14:56:02,501 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 14:56:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 14:56:02,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 14:56:02,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:56:02,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:02,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:02,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 14:56:03,896 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2022-07-13 14:56:03,896 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2022-07-13 14:56:03,897 INFO L899 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2022-07-13 14:56:03,898 INFO L902 garLoopResultBuilder]: At program point L128(lines 112 129) the Hoare annotation is: true [2022-07-13 14:56:03,898 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2022-07-13 14:56:03,898 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2022-07-13 14:56:03,898 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2022-07-13 14:56:03,898 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2022-07-13 14:56:03,899 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~y#1| (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:56:03,899 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2022-07-13 14:56:03,899 INFO L899 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2022-07-13 14:56:03,899 INFO L895 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~y#1| (fp.neg (_ +zero 8 24))) (exists ((|ULTIMATE.start_fmod_float_~x#1| (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_fmod_float_~x#1| (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:56:03,899 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-07-13 14:56:03,900 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 14:56:03,900 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 126) no Hoare annotation was computed. [2022-07-13 14:56:03,900 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2022-07-13 14:56:03,900 INFO L895 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2022-07-13 14:56:03,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2022-07-13 14:56:03,901 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2022-07-13 14:56:03,901 INFO L895 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2022-07-13 14:56:03,901 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2022-07-13 14:56:03,901 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2022-07-13 14:56:03,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 14:56:03,902 INFO L899 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2022-07-13 14:56:03,902 INFO L899 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2022-07-13 14:56:03,902 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2022-07-13 14:56:03,902 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2022-07-13 14:56:03,902 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2022-07-13 14:56:03,902 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2022-07-13 14:56:03,903 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2022-07-13 14:56:03,903 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2022-07-13 14:56:03,903 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2022-07-13 14:56:03,903 INFO L895 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2022-07-13 14:56:03,905 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-13 14:56:03,907 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:56:03,916 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,917 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,918 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,918 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:03,918 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,919 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:03,919 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,920 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,920 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,920 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:03,920 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,920 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:03,921 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:56:03 BoogieIcfgContainer [2022-07-13 14:56:03,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:56:03,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:56:03,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:56:03,923 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:56:03,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:54" (3/4) ... [2022-07-13 14:56:03,926 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 14:56:03,934 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-13 14:56:03,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-13 14:56:03,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 14:56:03,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 14:56:03,968 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 14:56:03,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:56:03,972 INFO L158 Benchmark]: Toolchain (without parser) took 13007.70ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 53.4MB in the end (delta: -7.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:03,972 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:56:03,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.31ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 46.4MB in the end (delta: -858.1kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 14:56:03,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.47ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:03,973 INFO L158 Benchmark]: Boogie Preprocessor took 65.43ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 42.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:03,974 INFO L158 Benchmark]: RCFGBuilder took 2723.50ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 42.2MB in the beginning and 58.3MB in the end (delta: -16.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-07-13 14:56:03,976 INFO L158 Benchmark]: TraceAbstraction took 9746.18ms. Allocated memory is still 79.7MB. Free memory was 57.9MB in the beginning and 56.0MB in the end (delta: 1.9MB). Peak memory consumption was 863.4kB. Max. memory is 16.1GB. [2022-07-13 14:56:03,977 INFO L158 Benchmark]: Witness Printer took 46.91ms. Allocated memory is still 79.7MB. Free memory was 56.0MB in the beginning and 53.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:03,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.31ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 46.4MB in the end (delta: -858.1kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.47ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.43ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 42.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2723.50ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 42.2MB in the beginning and 58.3MB in the end (delta: -16.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9746.18ms. Allocated memory is still 79.7MB. Free memory was 57.9MB in the beginning and 56.0MB in the end (delta: 1.9MB). Peak memory consumption was 863.4kB. Max. memory is 16.1GB. * Witness Printer took 46.91ms. Allocated memory is still 79.7MB. Free memory was 56.0MB in the beginning and 53.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 260 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 111 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 41 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 2 QuantifiedInterpolants, 137 SizeOfPredicates, 15 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2022-07-13 14:56:03,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2022-07-13 14:56:03,998 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,998 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:03,998 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:03,998 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,999 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,999 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,999 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:03,999 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:03,999 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x#1,QUANTIFIED] [2022-07-13 14:56:04,000 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_fmod_float_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x#1, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x#1, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-07-13 14:56:04,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE