./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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/float13.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 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 ..................................................................................................................................................................................................................................... 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/float13.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 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:35:05,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:05,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:05,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:05,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:05,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:05,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:05,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:05,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:05,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:05,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:05,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:05,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:05,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:05,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:05,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:05,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:05,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:05,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:05,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:05,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:05,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:05,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:05,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:05,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:05,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:05,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:05,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:05,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:05,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:05,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:05,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:05,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:05,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:05,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:05,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:05,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:05,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:05,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:05,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:05,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:05,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:35:05,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:05,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:05,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:05,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:05,762 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:05,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:05,763 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:05,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:35:05,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:05,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:05,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:05,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:05,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:05,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:05,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:05,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:05,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:05,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:05,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:05,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:05,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:05,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:05,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:05,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:05,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:05,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:35:05,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:35:05,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:05,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:05,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-10-25 21:35:06,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:06,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:06,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:06,289 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:06,291 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:06,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-25 21:35:06,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0d2a920/a023e7bf71824ff59caf32a232f7e968/FLAG917de3c9d [2020-10-25 21:35:07,098 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:07,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-25 21:35:07,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0d2a920/a023e7bf71824ff59caf32a232f7e968/FLAG917de3c9d [2020-10-25 21:35:07,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0d2a920/a023e7bf71824ff59caf32a232f7e968 [2020-10-25 21:35:07,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:07,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:07,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:07,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:07,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:07,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453a2455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07, skipping insertion in model container [2020-10-25 21:35:07,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:07,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:07,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:07,735 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:35:07,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:07,777 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:35:07,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07 WrapperNode [2020-10-25 21:35:07,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:07,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:07,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:35:07,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:35:07,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:07,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:35:07,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:35:07,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:35:07,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... [2020-10-25 21:35:07,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:35:07,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:35:07,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:35:07,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:35:07,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:35:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:35:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:35:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:35:08,328 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:35:08,328 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 21:35:08,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:08 BoogieIcfgContainer [2020-10-25 21:35:08,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:35:08,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:35:08,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:35:08,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:35:08,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:35:07" (1/3) ... [2020-10-25 21:35:08,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241805d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:08, skipping insertion in model container [2020-10-25 21:35:08,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:07" (2/3) ... [2020-10-25 21:35:08,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241805d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:08, skipping insertion in model container [2020-10-25 21:35:08,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:08" (3/3) ... [2020-10-25 21:35:08,341 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-10-25 21:35:08,372 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:35:08,383 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-25 21:35:08,404 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-25 21:35:08,456 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:35:08,456 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:35:08,456 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:35:08,457 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:35:08,457 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:35:08,457 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:35:08,458 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:35:08,458 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:35:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-25 21:35:08,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:35:08,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:08,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:35:08,491 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:08,499 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-25 21:35:08,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:35:08,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957261590] [2020-10-25 21:35:08,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:35:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:35:08,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:35:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:35:08,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:35:08,786 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:35:08,787 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:35:08,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:35:08,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:35:08 BoogieIcfgContainer [2020-10-25 21:35:08,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:35:08,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:35:08,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:35:08,822 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:35:08,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:08" (3/4) ... [2020-10-25 21:35:08,829 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:35:08,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:35:08,836 INFO L168 Benchmark]: Toolchain (without parser) took 1359.90 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.3 MB in the beginning and 26.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:08,839 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 44.0 MB. Free memory is still 28.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:08,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.45 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 22.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:08,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.43 ms. Allocated memory is still 44.0 MB. Free memory was 22.4 MB in the beginning and 20.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:08,844 INFO L168 Benchmark]: Boogie Preprocessor took 27.74 ms. Allocated memory is still 44.0 MB. Free memory was 20.8 MB in the beginning and 19.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:08,846 INFO L168 Benchmark]: RCFGBuilder took 478.69 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.6 MB in the beginning and 25.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:08,848 INFO L168 Benchmark]: TraceAbstraction took 485.37 ms. Allocated memory is still 54.5 MB. Free memory was 25.3 MB in the beginning and 26.9 MB in the end (delta: -1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:08,849 INFO L168 Benchmark]: Witness Printer took 8.42 ms. Allocated memory is still 54.5 MB. Free memory was 26.9 MB in the beginning and 26.6 MB in the end (delta: 282.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:08,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 44.0 MB. Free memory is still 28.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.45 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 22.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.43 ms. Allocated memory is still 44.0 MB. Free memory was 22.4 MB in the beginning and 20.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.74 ms. Allocated memory is still 44.0 MB. Free memory was 20.8 MB in the beginning and 19.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 478.69 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.6 MB in the beginning and 25.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 485.37 ms. Allocated memory is still 54.5 MB. Free memory was 25.3 MB in the beginning and 26.9 MB in the end (delta: -1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 8.42 ms. Allocated memory is still 54.5 MB. Free memory was 26.9 MB in the beginning and 26.6 MB in the end (delta: 282.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); [L11] _Bool temp; [L14] temp = NaN < plus_infinity [L15] COND TRUE !(!temp) [L3] __assert_fail("0", "float13.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:35:11,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:11,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:11,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:11,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:11,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:11,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:11,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:11,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:11,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:11,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:11,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:11,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:11,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:11,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:11,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:11,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:11,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:11,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:11,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:11,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:11,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:11,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:11,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:11,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:11,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:11,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:11,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:11,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:11,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:11,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:11,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:11,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:11,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:11,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:11,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:11,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:11,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:11,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:11,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:11,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:11,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:35:11,760 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:11,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:11,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:11,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:11,764 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:11,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:11,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:11,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:11,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:11,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:11,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:11,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:11,766 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:35:11,766 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:35:11,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:11,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:11,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:11,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:11,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:11,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:11,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:11,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:11,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:11,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:11,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:11,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:11,769 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:35:11,770 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:35:11,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:11,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:11,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:35:11,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-10-25 21:35:12,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:12,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:12,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:12,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:12,200 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:12,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-25 21:35:12,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a89b68c/79ea36d8be1747f19ad0648fd2025a13/FLAG471c0bec1 [2020-10-25 21:35:13,018 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:13,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-25 21:35:13,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a89b68c/79ea36d8be1747f19ad0648fd2025a13/FLAG471c0bec1 [2020-10-25 21:35:13,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a89b68c/79ea36d8be1747f19ad0648fd2025a13 [2020-10-25 21:35:13,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:13,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:13,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:13,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:13,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:13,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678fffa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13, skipping insertion in model container [2020-10-25 21:35:13,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:13,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:13,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:13,607 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:35:13,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:13,648 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:35:13,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13 WrapperNode [2020-10-25 21:35:13,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:13,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:13,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:35:13,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:35:13,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:13,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:35:13,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:35:13,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:35:13,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... [2020-10-25 21:35:13,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:35:13,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:35:13,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:35:13,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:35:13,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:13,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:35:13,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:35:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:35:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:35:14,130 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:35:14,131 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 21:35:14,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:14 BoogieIcfgContainer [2020-10-25 21:35:14,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:35:14,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:35:14,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:35:14,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:35:14,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:35:13" (1/3) ... [2020-10-25 21:35:14,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8881a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:14, skipping insertion in model container [2020-10-25 21:35:14,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:13" (2/3) ... [2020-10-25 21:35:14,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8881a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:14, skipping insertion in model container [2020-10-25 21:35:14,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:14" (3/3) ... [2020-10-25 21:35:14,144 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-10-25 21:35:14,159 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:35:14,170 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-25 21:35:14,203 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-25 21:35:14,275 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:35:14,277 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:35:14,277 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:35:14,277 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:35:14,278 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:35:14,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:35:14,280 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:35:14,280 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:35:14,312 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-25 21:35:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:35:14,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:14,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:35:14,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:14,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:14,334 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-25 21:35:14,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:35:14,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600614181] [2020-10-25 21:35:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:35:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:35:14,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 21:35:14,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:35:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:14,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:35:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:14,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600614181] [2020-10-25 21:35:14,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:35:14,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-25 21:35:14,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040814069] [2020-10-25 21:35:14,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 21:35:14,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:35:14,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 21:35:14,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 21:35:14,792 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-10-25 21:35:15,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:35:15,018 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2020-10-25 21:35:15,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:35:15,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-10-25 21:35:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:35:15,028 INFO L225 Difference]: With dead ends: 63 [2020-10-25 21:35:15,029 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:35:15,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:35:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:35:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:35:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:35:15,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:35:15,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-25 21:35:15,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:35:15,065 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:35:15,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 21:35:15,066 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:35:15,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:35:15,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:35:15,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:35:15,353 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,353 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 21:35:15,353 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,353 INFO L274 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-10-25 21:35:15,353 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-25 21:35:15,354 INFO L274 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-10-25 21:35:15,354 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 21:35:15,354 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,354 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,354 INFO L274 CegarLoopResult]: For program point L36-2(line 36) no Hoare annotation was computed. [2020-10-25 21:35:15,354 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,355 INFO L274 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,355 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:35:15,355 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,355 INFO L274 CegarLoopResult]: For program point L3-5(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,355 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,355 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:35:15,356 INFO L274 CegarLoopResult]: For program point L3-6(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,356 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:35:15,356 INFO L274 CegarLoopResult]: For program point L3-7(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,356 INFO L274 CegarLoopResult]: For program point L3-8(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,356 INFO L274 CegarLoopResult]: For program point L3-9(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,356 INFO L274 CegarLoopResult]: For program point L3-10(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,356 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L3-11(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L3-12(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L3-13(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L3-14(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L3-15(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,357 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 21:35:15,358 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:35:15,358 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,358 INFO L274 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-10-25 21:35:15,358 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,358 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-25 21:35:15,358 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-10-25 21:35:15,359 INFO L270 CegarLoopResult]: At program point L38(lines 9 39) the Hoare annotation is: (and (= (_ bv0 8) ULTIMATE.start_main_~temp~0) (exists ((currentRoundingMode RoundingMode)) (= ~NaN~0 (fp.mul currentRoundingMode (_ +zero 8 24) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))))) [2020-10-25 21:35:15,359 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,360 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 21:35:15,360 INFO L274 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-10-25 21:35:15,360 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:15,360 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-25 21:35:15,360 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-10-25 21:35:15,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:35:15 BoogieIcfgContainer [2020-10-25 21:35:15,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:35:15,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:35:15,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:35:15,385 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:35:15,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:14" (3/4) ... [2020-10-25 21:35:15,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:35:15,404 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-25 21:35:15,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-25 21:35:15,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:35:15,408 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:35:15,441 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) [2020-10-25 21:35:15,467 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:35:15,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:35:15,469 INFO L168 Benchmark]: Toolchain (without parser) took 2107.49 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.2 MB in the beginning and 15.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:15,470 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 16.4 MB in the beginning and 16.4 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:15,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.51 ms. Allocated memory is still 41.9 MB. Free memory was 18.6 MB in the beginning and 17.7 MB in the end (delta: 847.0 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:15,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.98 ms. Allocated memory is still 41.9 MB. Free memory was 17.7 MB in the beginning and 26.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:15,472 INFO L168 Benchmark]: Boogie Preprocessor took 33.10 ms. Allocated memory is still 41.9 MB. Free memory was 26.1 MB in the beginning and 24.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:15,473 INFO L168 Benchmark]: RCFGBuilder took 398.15 ms. Allocated memory is still 41.9 MB. Free memory was 24.7 MB in the beginning and 19.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:15,474 INFO L168 Benchmark]: TraceAbstraction took 1248.10 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.1 MB in the beginning and 18.2 MB in the end (delta: 934.5 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:15,474 INFO L168 Benchmark]: Witness Printer took 82.61 ms. Allocated memory is still 50.3 MB. Free memory was 18.2 MB in the beginning and 15.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:15,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 16.4 MB in the beginning and 16.4 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 281.51 ms. Allocated memory is still 41.9 MB. Free memory was 18.6 MB in the beginning and 17.7 MB in the end (delta: 847.0 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.98 ms. Allocated memory is still 41.9 MB. Free memory was 17.7 MB in the beginning and 26.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.10 ms. Allocated memory is still 41.9 MB. Free memory was 26.1 MB in the beginning and 24.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 398.15 ms. Allocated memory is still 41.9 MB. Free memory was 24.7 MB in the beginning and 19.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1248.10 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.1 MB in the beginning and 18.2 MB in the end (delta: 934.5 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Witness Printer took 82.61 ms. Allocated memory is still 50.3 MB. Free memory was 18.2 MB in the beginning and 15.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant [2020-10-25 21:35:15,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:35:15,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 23 SDslu, 1 SDs, 0 SdLazy, 16 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 75 SizeOfPredicates, 4 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...