./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 a4ecdabc 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-a4ecdab [2020-10-24 21:57:05,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:05,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:05,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:05,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:05,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:05,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:05,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:05,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:05,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:05,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:05,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:05,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:05,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:05,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:05,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:05,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:05,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:05,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:05,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:05,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:05,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:05,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:05,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:05,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:05,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:05,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:05,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:05,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:05,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:05,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:05,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:05,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:05,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:05,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:05,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:05,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:05,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:05,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:05,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:05,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:05,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:57:05,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:05,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:05,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:05,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:05,655 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:05,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:05,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:05,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:57:05,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:05,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:05,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:05,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:05,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:05,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:05,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:05,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:05,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:05,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:05,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:05,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:05,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:05,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:05,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:05,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:05,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:05,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:57:05,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:57:05,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:05,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:05,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-10-24 21:57:06,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:06,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:06,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:06,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:06,120 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:06,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-24 21:57:06,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe53f7b80/32c8041542714b1a893ecbc54f74c830/FLAGa621c828b [2020-10-24 21:57:06,839 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:06,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-24 21:57:06,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe53f7b80/32c8041542714b1a893ecbc54f74c830/FLAGa621c828b [2020-10-24 21:57:07,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe53f7b80/32c8041542714b1a893ecbc54f74c830 [2020-10-24 21:57:07,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:07,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:07,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:07,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:07,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:07,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c7ecd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07, skipping insertion in model container [2020-10-24 21:57:07,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:07,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:07,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:07,542 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:57:07,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:07,581 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:57:07,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07 WrapperNode [2020-10-24 21:57:07,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:07,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:07,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:57:07,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:57:07,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:07,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:57:07,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:57:07,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:57:07,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (1/1) ... [2020-10-24 21:57:07,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:57:07,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:57:07,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:57:07,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:57:07,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (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 [2020-10-24 21:57:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:57:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:57:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 21:57:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:57:08,042 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:57:08,043 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 21:57:08,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:08 BoogieIcfgContainer [2020-10-24 21:57:08,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:57:08,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:57:08,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:57:08,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:57:08,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:57:07" (1/3) ... [2020-10-24 21:57:08,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a5549d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:08, skipping insertion in model container [2020-10-24 21:57:08,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:07" (2/3) ... [2020-10-24 21:57:08,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a5549d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:08, skipping insertion in model container [2020-10-24 21:57:08,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:08" (3/3) ... [2020-10-24 21:57:08,060 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-10-24 21:57:08,086 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:57:08,099 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-24 21:57:08,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-24 21:57:08,215 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:57:08,215 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:57:08,215 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:57:08,216 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:57:08,216 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:57:08,216 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:57:08,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:57:08,216 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:57:08,253 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-24 21:57:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 21:57:08,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:08,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 21:57:08,261 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]=== [2020-10-24 21:57:08,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:08,271 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 21:57:08,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 21:57:08,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369335951] [2020-10-24 21:57:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 21:57:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:57:08,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:57:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:57:08,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:57:08,575 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 21:57:08,577 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 21:57:08,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 21:57:08,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:57:08 BoogieIcfgContainer [2020-10-24 21:57:08,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:57:08,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:57:08,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:57:08,614 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:57:08,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:08" (3/4) ... [2020-10-24 21:57:08,621 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 21:57:08,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:57:08,625 INFO L168 Benchmark]: Toolchain (without parser) took 1418.32 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.9 MB in the beginning and 26.3 MB in the end (delta: -7.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:08,626 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory is still 21.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:08,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.13 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 28.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:08,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.00 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 27.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:08,629 INFO L168 Benchmark]: Boogie Preprocessor took 26.68 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 25.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:08,630 INFO L168 Benchmark]: RCFGBuilder took 390.62 ms. Allocated memory is still 52.4 MB. Free memory was 25.8 MB in the beginning and 25.2 MB in the end (delta: 620.3 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:08,631 INFO L168 Benchmark]: TraceAbstraction took 562.73 ms. Allocated memory is still 52.4 MB. Free memory was 24.6 MB in the beginning and 26.7 MB in the end (delta: -2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:08,632 INFO L168 Benchmark]: Witness Printer took 8.55 ms. Allocated memory is still 52.4 MB. Free memory was 26.5 MB in the beginning and 26.3 MB in the end (delta: 236.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:08,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory is still 21.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.13 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 28.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.00 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 27.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.68 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 25.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 390.62 ms. Allocated memory is still 52.4 MB. Free memory was 25.8 MB in the beginning and 25.2 MB in the end (delta: 620.3 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 562.73 ms. Allocated memory is still 52.4 MB. Free memory was 24.6 MB in the beginning and 26.7 MB in the end (delta: -2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 8.55 ms. Allocated memory is still 52.4 MB. Free memory was 26.5 MB in the beginning and 26.3 MB in the end (delta: 236.0 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-a4ecdab [2020-10-24 21:57:11,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:11,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:11,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:11,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:11,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:11,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:11,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:11,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:11,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:11,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:11,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:11,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:11,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:11,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:11,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:11,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:11,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:11,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:11,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:11,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:11,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:11,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:11,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:11,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:11,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:11,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:11,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:11,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:11,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:11,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:11,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:11,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:11,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:11,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:11,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:11,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:11,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:11,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:11,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:11,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:11,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:57:11,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:11,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:11,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:11,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:11,579 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:11,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:11,580 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:11,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:11,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:11,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:11,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:11,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:11,583 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:57:11,583 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:57:11,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:11,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:11,584 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:11,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:11,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:11,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:11,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:11,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:11,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:11,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:11,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:11,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:11,587 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:57:11,587 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:57:11,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:11,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:11,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:57:11,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-10-24 21:57:12,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:12,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:12,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:12,079 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:12,080 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:12,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-24 21:57:12,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee157a71f/50afd6acf1e74a2b95c40088f474f76f/FLAGa71d6894a [2020-10-24 21:57:12,930 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:12,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-24 21:57:12,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee157a71f/50afd6acf1e74a2b95c40088f474f76f/FLAGa71d6894a [2020-10-24 21:57:13,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee157a71f/50afd6acf1e74a2b95c40088f474f76f [2020-10-24 21:57:13,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:13,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:13,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:13,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:13,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:13,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a66335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13, skipping insertion in model container [2020-10-24 21:57:13,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:13,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:13,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:13,566 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:57:13,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:13,603 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:57:13,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13 WrapperNode [2020-10-24 21:57:13,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:13,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:13,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:57:13,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:57:13,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:13,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:57:13,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:57:13,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:57:13,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (1/1) ... [2020-10-24 21:57:13,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:57:13,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:57:13,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:57:13,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:57:13,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (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 [2020-10-24 21:57:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:57:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:57:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:57:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:57:14,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:57:14,112 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 21:57:14,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:14 BoogieIcfgContainer [2020-10-24 21:57:14,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:57:14,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:57:14,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:57:14,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:57:14,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:57:13" (1/3) ... [2020-10-24 21:57:14,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228ed757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:14, skipping insertion in model container [2020-10-24 21:57:14,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:13" (2/3) ... [2020-10-24 21:57:14,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228ed757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:14, skipping insertion in model container [2020-10-24 21:57:14,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:14" (3/3) ... [2020-10-24 21:57:14,127 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-10-24 21:57:14,146 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:57:14,153 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-24 21:57:14,193 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-24 21:57:14,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:57:14,273 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:57:14,273 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:57:14,274 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:57:14,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:57:14,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:57:14,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:57:14,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:57:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-24 21:57:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 21:57:14,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:14,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 21:57:14,316 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]=== [2020-10-24 21:57:14,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:14,323 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 21:57:14,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:14,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88865582] [2020-10-24 21:57:14,341 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 [2020-10-24 21:57:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:14,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 21:57:14,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:14,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:14,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:14,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88865582] [2020-10-24 21:57:14,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:14,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:57:14,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311304434] [2020-10-24 21:57:14,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 21:57:14,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:14,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 21:57:14,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 21:57:14,730 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-10-24 21:57:14,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:14,963 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2020-10-24 21:57:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 21:57:14,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-10-24 21:57:14,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:14,973 INFO L225 Difference]: With dead ends: 63 [2020-10-24 21:57:14,974 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:57:14,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 21:57:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:57:15,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:57:15,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:57:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:57:15,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-24 21:57:15,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:15,008 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:57:15,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 21:57:15,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:57:15,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:57:15,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:57:15,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:57:15,292 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,292 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-24 21:57:15,292 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,292 INFO L274 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-10-24 21:57:15,292 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-24 21:57:15,292 INFO L274 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-10-24 21:57:15,293 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-24 21:57:15,293 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,293 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,293 INFO L274 CegarLoopResult]: For program point L36-2(line 36) no Hoare annotation was computed. [2020-10-24 21:57:15,294 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,294 INFO L274 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,294 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:57:15,294 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,294 INFO L274 CegarLoopResult]: For program point L3-5(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:57:15,295 INFO L274 CegarLoopResult]: For program point L3-6(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:57:15,295 INFO L274 CegarLoopResult]: For program point L3-7(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,296 INFO L274 CegarLoopResult]: For program point L3-8(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,296 INFO L274 CegarLoopResult]: For program point L3-9(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,296 INFO L274 CegarLoopResult]: For program point L3-10(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,296 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,297 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-24 21:57:15,297 INFO L274 CegarLoopResult]: For program point L3-11(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,297 INFO L274 CegarLoopResult]: For program point L3-12(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,297 INFO L274 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-10-24 21:57:15,297 INFO L274 CegarLoopResult]: For program point L3-13(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,297 INFO L274 CegarLoopResult]: For program point L3-14(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,298 INFO L274 CegarLoopResult]: For program point L3-15(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,298 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-24 21:57:15,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:57:15,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,299 INFO L274 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-10-24 21:57:15,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,299 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-24 21:57:15,299 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-10-24 21:57:15,300 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)))))) [2020-10-24 21:57:15,300 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,300 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-24 21:57:15,301 INFO L274 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-10-24 21:57:15,301 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:57:15,301 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-24 21:57:15,301 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-10-24 21:57:15,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:57:15 BoogieIcfgContainer [2020-10-24 21:57:15,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:57:15,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:57:15,328 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:57:15,328 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:57:15,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:14" (3/4) ... [2020-10-24 21:57:15,332 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:57:15,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 21:57:15,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-24 21:57:15,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:57:15,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:57:15,377 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()))) [2020-10-24 21:57:15,402 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:57:15,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:57:15,405 INFO L168 Benchmark]: Toolchain (without parser) took 2108.00 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.3 MB in the beginning and 36.6 MB in the end (delta: -12.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:15,406 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 46.1 MB. Free memory was 26.6 MB in the beginning and 26.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:15,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.05 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 24.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:15,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.87 ms. Allocated memory is still 46.1 MB. Free memory was 24.8 MB in the beginning and 23.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:15,408 INFO L168 Benchmark]: Boogie Preprocessor took 32.88 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 22.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:15,409 INFO L168 Benchmark]: RCFGBuilder took 428.46 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.8 MB in the beginning and 28.7 MB in the end (delta: -6.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:15,410 INFO L168 Benchmark]: TraceAbstraction took 1210.09 ms. Allocated memory is still 56.6 MB. Free memory was 28.3 MB in the beginning and 39.8 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:15,411 INFO L168 Benchmark]: Witness Printer took 74.95 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 36.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:15,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 46.1 MB. Free memory was 26.6 MB in the beginning and 26.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.05 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 24.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.87 ms. Allocated memory is still 46.1 MB. Free memory was 24.8 MB in the beginning and 23.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.88 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 22.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 428.46 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.8 MB in the beginning and 28.7 MB in the end (delta: -6.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1210.09 ms. Allocated memory is still 56.6 MB. Free memory was 28.3 MB in the beginning and 39.8 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Witness Printer took 74.95 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 36.6 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 [2020-10-24 21:57:15,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:57:15,431 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: 0.9s, 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, 0.2s 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...