./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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 ad220425e59782d2842875bc5488a6e9ea4ef5ae ......................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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 ad220425e59782d2842875bc5488a6e9ea4ef5ae .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:39:13,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:39:13,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:39:13,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:39:13,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:39:13,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:39:13,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:39:13,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:39:13,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:39:13,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:39:13,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:39:13,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:39:13,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:39:13,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:39:13,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:39:13,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:39:13,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:39:13,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:39:13,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:39:13,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:39:13,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:39:13,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:39:13,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:39:13,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:39:13,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:39:13,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:39:13,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:39:13,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:39:13,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:39:13,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:39:13,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:39:13,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:39:13,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:39:13,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:39:13,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:39:13,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:39:13,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:39:13,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:39:13,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:39:13,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:39:13,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:39:13,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:39:13,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:39:13,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:39:13,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:39:13,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:39:13,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:39:13,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:39:13,603 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:39:13,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:39:13,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:39:13,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:39:13,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:39:13,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:39:13,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:39:13,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:39:13,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:39:13,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:39:13,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:39:13,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:39:13,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:39:13,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:39:13,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:39:13,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:39:13,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:39:13,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:39:13,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:39:13,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:39:13,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:39:13,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:39:13,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:39:13,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:39:13,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2021-08-29 06:39:13,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:39:13,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:39:13,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:39:13,911 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:39:13,911 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:39:13,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-08-29 06:39:13,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42024bb6b/cb401354a16f45868b3374d655b2f873/FLAGe5353b6ef [2021-08-29 06:39:14,475 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:39:14,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-08-29 06:39:14,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42024bb6b/cb401354a16f45868b3374d655b2f873/FLAGe5353b6ef [2021-08-29 06:39:14,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42024bb6b/cb401354a16f45868b3374d655b2f873 [2021-08-29 06:39:14,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:39:14,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:39:14,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:39:14,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:39:14,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:39:14,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:39:14" (1/1) ... [2021-08-29 06:39:14,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d2f83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:14, skipping insertion in model container [2021-08-29 06:39:14,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:39:14" (1/1) ... [2021-08-29 06:39:14,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:39:15,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:39:15,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-08-29 06:39:15,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:39:15,182 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:39:15,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-08-29 06:39:15,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:39:15,216 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:39:15,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15 WrapperNode [2021-08-29 06:39:15,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:39:15,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:39:15,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:39:15,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:39:15,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:39:15,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:39:15,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:39:15,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:39:15,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:39:15,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:39:15,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:39:15,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:39:15,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (1/1) ... [2021-08-29 06:39:15,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:39:15,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:39:15,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:39:15,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:39:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:39:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:39:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 06:39:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:39:15,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:39:15,503 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-29 06:39:15,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:39:15 BoogieIcfgContainer [2021-08-29 06:39:15,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:39:15,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:39:15,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:39:15,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:39:15,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:39:14" (1/3) ... [2021-08-29 06:39:15,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7008b476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:39:15, skipping insertion in model container [2021-08-29 06:39:15,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:15" (2/3) ... [2021-08-29 06:39:15,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7008b476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:39:15, skipping insertion in model container [2021-08-29 06:39:15,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:39:15" (3/3) ... [2021-08-29 06:39:15,518 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2021-08-29 06:39:15,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:39:15,524 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:39:15,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:39:15,583 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 06:39:15,583 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:39:15,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:39:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 06:39:15,603 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:39:15,603 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 06:39:15,604 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:39:15,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:39:15,609 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-29 06:39:15,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:39:15,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316553400] [2021-08-29 06:39:15,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:39:15,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:39:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:39:15,719 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:39:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:39:15,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 06:39:15,779 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:39:15,780 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:39:15,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 06:39:15,792 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:39:15,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:39:15 BoogieIcfgContainer [2021-08-29 06:39:15,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:39:15,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:39:15,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:39:15,816 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:39:15,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:39:15" (3/4) ... [2021-08-29 06:39:15,819 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:39:15,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:39:15,821 INFO L158 Benchmark]: Toolchain (without parser) took 840.64ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 44.8MB in the end (delta: 988.5kB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2021-08-29 06:39:15,821 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 46.2MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:39:15,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.39ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 35.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 06:39:15,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.22ms. Allocated memory is still 65.0MB. Free memory was 35.6MB in the beginning and 34.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:39:15,824 INFO L158 Benchmark]: Boogie Preprocessor took 29.22ms. Allocated memory is still 65.0MB. Free memory was 34.2MB in the beginning and 49.1MB in the end (delta: -14.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-08-29 06:39:15,828 INFO L158 Benchmark]: RCFGBuilder took 225.28ms. Allocated memory is still 65.0MB. Free memory was 49.1MB in the beginning and 41.2MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 06:39:15,829 INFO L158 Benchmark]: TraceAbstraction took 305.13ms. Allocated memory is still 65.0MB. Free memory was 40.6MB in the beginning and 45.3MB in the end (delta: -4.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-08-29 06:39:15,829 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 44.8MB in the end (delta: 285.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:39:15,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 46.2MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.39ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 35.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.22ms. Allocated memory is still 65.0MB. Free memory was 35.6MB in the beginning and 34.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.22ms. Allocated memory is still 65.0MB. Free memory was 34.2MB in the beginning and 49.1MB in the end (delta: -14.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * RCFGBuilder took 225.28ms. Allocated memory is still 65.0MB. Free memory was 49.1MB in the beginning and 41.2MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 305.13ms. Allocated memory is still 65.0MB. Free memory was 40.6MB in the beginning and 45.3MB in the end (delta: -4.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 44.8MB in the end (delta: 285.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: 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 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 218.87ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.86ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.27ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.72ms SsaConstructionTime, 35.77ms SatisfiabilityAnalysisTime, 0.00ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 06:39:15,868 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:39:17,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:39:17,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:39:17,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:39:17,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:39:17,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:39:17,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:39:17,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:39:17,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:39:17,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:39:17,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:39:17,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:39:17,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:39:17,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:39:17,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:39:17,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:39:17,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:39:17,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:39:17,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:39:17,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:39:17,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:39:17,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:39:17,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:39:17,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:39:17,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:39:17,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:39:17,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:39:17,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:39:17,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:39:17,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:39:17,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:39:17,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:39:17,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:39:17,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:39:17,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:39:17,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:39:17,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:39:17,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:39:17,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:39:17,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:39:17,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:39:17,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:39:17,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:39:17,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:39:17,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:39:17,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:39:17,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:39:17,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:39:17,852 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:39:17,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:39:17,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:39:17,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:39:17,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:39:17,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:39:17,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:39:17,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:39:17,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:39:17,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:39:17,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:39:17,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:39:17,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:39:17,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:39:17,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:39:17,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:39:17,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:39:17,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:39:17,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:39:17,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:39:17,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:39:17,857 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:39:17,857 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:39:17,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:39:17,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:39:17,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:39:17,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2021-08-29 06:39:18,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:39:18,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:39:18,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:39:18,170 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:39:18,171 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:39:18,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-08-29 06:39:18,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c657f6b58/3d1726d1a31640f5b1f05d32867b0766/FLAG6b8ca5693 [2021-08-29 06:39:18,653 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:39:18,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-08-29 06:39:18,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c657f6b58/3d1726d1a31640f5b1f05d32867b0766/FLAG6b8ca5693 [2021-08-29 06:39:18,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c657f6b58/3d1726d1a31640f5b1f05d32867b0766 [2021-08-29 06:39:18,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:39:18,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:39:18,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:39:18,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:39:18,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:39:18,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:18,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28430581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18, skipping insertion in model container [2021-08-29 06:39:18,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:18,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:39:18,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:39:18,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-08-29 06:39:18,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:39:18,901 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:39:18,925 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-08-29 06:39:18,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:39:18,944 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:39:18,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18 WrapperNode [2021-08-29 06:39:18,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:39:18,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:39:18,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:39:18,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:39:18,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:18,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:18,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:39:18,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:39:18,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:39:18,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:39:18,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:18,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:19,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:19,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:19,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:19,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:19,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:19,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:39:19,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:39:19,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:39:19,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:39:19,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (1/1) ... [2021-08-29 06:39:19,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:39:19,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:39:19,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:39:19,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:39:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:39:19,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:39:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:39:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:39:19,257 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:39:19,257 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-29 06:39:19,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:39:19 BoogieIcfgContainer [2021-08-29 06:39:19,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:39:19,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:39:19,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:39:19,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:39:19,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:39:18" (1/3) ... [2021-08-29 06:39:19,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3134d5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:39:19, skipping insertion in model container [2021-08-29 06:39:19,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:39:18" (2/3) ... [2021-08-29 06:39:19,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3134d5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:39:19, skipping insertion in model container [2021-08-29 06:39:19,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:39:19" (3/3) ... [2021-08-29 06:39:19,269 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2021-08-29 06:39:19,275 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:39:19,275 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:39:19,324 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:39:19,333 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 06:39:19,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:39:19,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:39:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 06:39:19,350 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:39:19,350 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 06:39:19,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:39:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:39:19,356 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-29 06:39:19,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:39:19,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257990754] [2021-08-29 06:39:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:39:19,367 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:39:19,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:39:19,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:39:19,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:39:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:39:19,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-29 06:39:19,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:39:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:39:19,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:39:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:39:19,767 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:39:19,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257990754] [2021-08-29 06:39:19,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257990754] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:39:19,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:39:19,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-29 06:39:19,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120404229] [2021-08-29 06:39:19,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 06:39:19,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:39:19,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 06:39:19,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 06:39:19,798 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:39:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:39:19,916 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-08-29 06:39:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 06:39:19,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 4 [2021-08-29 06:39:19,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:39:19,923 INFO L225 Difference]: With dead ends: 13 [2021-08-29 06:39:19,924 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 06:39:19,926 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 81.58ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 06:39:19,930 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.81ms IncrementalHoareTripleChecker+Time [2021-08-29 06:39:19,931 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.55ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 72.81ms Time] [2021-08-29 06:39:19,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 06:39:19,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 06:39:19,950 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) [2021-08-29 06:39:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 06:39:19,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-08-29 06:39:19,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:39:19,951 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 06:39:19,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:39:19,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 06:39:19,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 06:39:19,954 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:39:19,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 06:39:20,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:39:20,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 06:39:20,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 06:39:20,220 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 06:39:20,220 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 06:39:20,220 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 06:39:20,221 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 06:39:20,221 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-08-29 06:39:20,221 INFO L854 garLoopResultBuilder]: At program point L14(lines 5 15) the Hoare annotation is: (and (= (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))) ULTIMATE.start_main_~target~0) (= ULTIMATE.start_main_~result~0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-29 06:39:20,221 INFO L858 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-08-29 06:39:20,222 INFO L858 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-08-29 06:39:20,222 INFO L858 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-08-29 06:39:20,226 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:39:20,234 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,234 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,235 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,235 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,235 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,237 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:39:20 BoogieIcfgContainer [2021-08-29 06:39:20,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:39:20,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:39:20,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:39:20,240 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:39:20,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:39:19" (3/4) ... [2021-08-29 06:39:20,243 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 06:39:20,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-08-29 06:39:20,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-29 06:39:20,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-29 06:39:20,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 06:39:20,276 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 06:39:20,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:39:20,277 INFO L158 Benchmark]: Toolchain (without parser) took 1596.96ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.8MB in the beginning and 33.7MB in the end (delta: 4.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-08-29 06:39:20,277 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:39:20,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.82ms. Allocated memory is still 58.7MB. Free memory was 37.7MB in the beginning and 27.2MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:39:20,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.97ms. Allocated memory is still 58.7MB. Free memory was 27.2MB in the beginning and 25.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:39:20,283 INFO L158 Benchmark]: Boogie Preprocessor took 38.68ms. Allocated memory is still 58.7MB. Free memory was 25.9MB in the beginning and 42.3MB in the end (delta: -16.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-08-29 06:39:20,284 INFO L158 Benchmark]: RCFGBuilder took 242.20ms. Allocated memory is still 58.7MB. Free memory was 42.3MB in the beginning and 34.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:39:20,284 INFO L158 Benchmark]: TraceAbstraction took 978.76ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 33.6MB in the beginning and 36.0MB in the end (delta: -2.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-08-29 06:39:20,285 INFO L158 Benchmark]: Witness Printer took 36.37ms. Allocated memory is still 71.3MB. Free memory was 35.8MB in the beginning and 33.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:39:20,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.82ms. Allocated memory is still 58.7MB. Free memory was 37.7MB in the beginning and 27.2MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.97ms. Allocated memory is still 58.7MB. Free memory was 27.2MB in the beginning and 25.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.68ms. Allocated memory is still 58.7MB. Free memory was 25.9MB in the beginning and 42.3MB in the end (delta: -16.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * RCFGBuilder took 242.20ms. Allocated memory is still 58.7MB. Free memory was 42.3MB in the beginning and 34.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 978.76ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 33.6MB in the beginning and 36.0MB in the end (delta: -2.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Witness Printer took 36.37ms. Allocated memory is still 71.3MB. Free memory was 35.8MB in the beginning and 33.7MB in the end (delta: 2.1MB). 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 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 902.86ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 7.98ms, AutomataDifference: 156.86ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 41.34ms, InitialAbstractionConstructionTime: 8.40ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 72.81ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 69.69ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 8 mSolverCounterSat, 0.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 81.58ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 7.65ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 27.37ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 8.61ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 37.36ms SsaConstructionTime, 105.37ms SatisfiabilityAnalysisTime, 183.56ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 5 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 5]: Loop Invariant [2021-08-29 06:39:20,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 06:39:20,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) == target && result == ~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-08-29 06:39:20,343 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...