./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e1a00cf 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b.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 fe7e30ef8cec89818712ef1a5b90083d064da205 ................................................................................................................................................................................................................................................................................................... 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b.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 fe7e30ef8cec89818712ef1a5b90083d064da205 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-0e1a00c [2020-11-29 15:22:18,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:22:18,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:22:18,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:22:18,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:22:18,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:22:18,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:22:18,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:22:18,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:22:18,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:22:18,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:22:18,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:22:18,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:22:18,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:22:18,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:22:18,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:22:18,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:22:18,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:22:18,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:22:18,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:22:18,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:22:18,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:22:18,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:22:18,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:22:18,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:22:18,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:22:18,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:22:18,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:22:18,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:22:18,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:22:18,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:22:18,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:22:18,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:22:18,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:22:18,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:22:18,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:22:18,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:22:18,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:22:18,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:22:18,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:22:18,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:22:18,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 15:22:18,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:22:18,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:22:18,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:22:18,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:22:18,476 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:22:18,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:22:18,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:22:18,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 15:22:18,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:22:18,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:22:18,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:22:18,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:22:18,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:22:18,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:22:18,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:22:18,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:22:18,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:22:18,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:22:18,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:22:18,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:22:18,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:22:18,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:22:18,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:22:18,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:22:18,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:22:18,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 15:22:18,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 15:22:18,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:22:18,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:22:18,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7e30ef8cec89818712ef1a5b90083d064da205 [2020-11-29 15:22:18,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:22:18,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:22:18,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:22:18,914 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:22:18,915 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:22:18,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c [2020-11-29 15:22:18,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8253589d0/e21362b20f934caaa34d93ef55a081f7/FLAG7e07227f5 [2020-11-29 15:22:19,567 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:22:19,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c [2020-11-29 15:22:19,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8253589d0/e21362b20f934caaa34d93ef55a081f7/FLAG7e07227f5 [2020-11-29 15:22:19,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8253589d0/e21362b20f934caaa34d93ef55a081f7 [2020-11-29 15:22:19,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:22:19,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:22:19,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:22:19,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:22:19,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:22:19,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:22:19" (1/1) ... [2020-11-29 15:22:19,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ad5934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:19, skipping insertion in model container [2020-11-29 15:22:19,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:22:19" (1/1) ... [2020-11-29 15:22:19,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:22:20,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:22:20,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:22:20,430 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:22:20,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:22:20,531 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:22:20,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20 WrapperNode [2020-11-29 15:22:20,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:22:20,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:22:20,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:22:20,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:22:20,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:22:20,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:22:20,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:22:20,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:22:20,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (1/1) ... [2020-11-29 15:22:20,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:22:20,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:22:20,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:22:20,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:22:20,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (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 [2020-11-29 15:22:20,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 15:22:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:22:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 15:22:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 15:22:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 15:22:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:22:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:22:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 15:22:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:22:21,077 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:22:21,077 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 15:22:21,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:22:21 BoogieIcfgContainer [2020-11-29 15:22:21,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:22:21,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:22:21,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:22:21,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:22:21,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:22:19" (1/3) ... [2020-11-29 15:22:21,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4bb03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:22:21, skipping insertion in model container [2020-11-29 15:22:21,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:20" (2/3) ... [2020-11-29 15:22:21,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4bb03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:22:21, skipping insertion in model container [2020-11-29 15:22:21,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:22:21" (3/3) ... [2020-11-29 15:22:21,101 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2020-11-29 15:22:21,136 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:22:21,144 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:22:21,159 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:22:21,186 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:22:21,187 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:22:21,187 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:22:21,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:22:21,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:22:21,188 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:22:21,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:22:21,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:22:21,202 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-29 15:22:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:22:21,207 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:22:21,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:22:21,208 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:22:21,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:22:21,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2020-11-29 15:22:21,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:22:21,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221862900] [2020-11-29 15:22:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:22:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:22:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:22:21,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221862900] [2020-11-29 15:22:21,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:22:21,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 15:22:21,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208332579] [2020-11-29 15:22:21,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:22:21,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 15:22:21,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:22:21,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:22:21,438 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-29 15:22:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:22:21,470 INFO L93 Difference]: Finished difference Result 59 states and 93 transitions. [2020-11-29 15:22:21,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:22:21,472 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 15:22:21,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:22:21,484 INFO L225 Difference]: With dead ends: 59 [2020-11-29 15:22:21,485 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 15:22:21,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:22:21,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 15:22:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 15:22:21,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 15:22:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-11-29 15:22:21,536 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2020-11-29 15:22:21,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:22:21,538 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-11-29 15:22:21,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:22:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-29 15:22:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:22:21,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:22:21,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:22:21,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 15:22:21,541 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:22:21,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:22:21,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2020-11-29 15:22:21,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:22:21,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952315493] [2020-11-29 15:22:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:22:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:22:21,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:22:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:22:21,691 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:22:21,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 15:22:21,720 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 15:22:21,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 15:22:21,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:22:21 BoogieIcfgContainer [2020-11-29 15:22:21,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:22:21,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:22:21,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:22:21,761 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:22:21,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:22:21" (3/4) ... [2020-11-29 15:22:21,768 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 15:22:21,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:22:21,771 INFO L168 Benchmark]: Toolchain (without parser) took 1808.47 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.8 MB in the beginning and 25.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:22:21,772 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory is still 22.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:22:21,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.13 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 30.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-29 15:22:21,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.28 ms. Allocated memory is still 54.5 MB. Free memory was 30.0 MB in the beginning and 28.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:22:21,775 INFO L168 Benchmark]: Boogie Preprocessor took 33.87 ms. Allocated memory is still 54.5 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:22:21,776 INFO L168 Benchmark]: RCFGBuilder took 450.46 ms. Allocated memory is still 54.5 MB. Free memory was 26.5 MB in the beginning and 35.8 MB in the end (delta: -9.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-29 15:22:21,777 INFO L168 Benchmark]: TraceAbstraction took 672.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 26.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-29 15:22:21,778 INFO L168 Benchmark]: Witness Printer took 8.43 ms. Allocated memory is still 54.5 MB. Free memory was 26.1 MB in the beginning and 25.8 MB in the end (delta: 309.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:22:21,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory is still 22.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 561.13 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 30.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.28 ms. Allocated memory is still 54.5 MB. Free memory was 30.0 MB in the beginning and 28.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.87 ms. Allocated memory is still 54.5 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 450.46 ms. Allocated memory is still 54.5 MB. Free memory was 26.5 MB in the beginning and 35.8 MB in the end (delta: -9.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 672.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 26.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Witness Printer took 8.43 ms. Allocated memory is still 54.5 MB. Free memory was 26.1 MB in the beginning and 25.8 MB in the end (delta: 309.2 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 45. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L122] float x = -1.0f / 0.0f; [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L123] float res = __ieee754_logf(x); [L113] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L126] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0920b.c", 3, "reach_error") VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-0e1a00c [2020-11-29 15:22:24,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:22:24,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:22:24,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:22:24,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:22:24,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:22:24,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:22:24,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:22:24,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:22:24,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:22:24,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:22:24,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:22:24,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:22:24,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:22:24,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:22:24,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:22:24,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:22:24,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:22:24,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:22:24,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:22:24,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:22:24,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:22:24,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:22:24,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:22:24,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:22:24,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:22:24,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:22:24,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:22:24,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:22:24,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:22:24,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:22:24,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:22:24,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:22:24,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:22:24,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:22:24,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:22:24,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:22:24,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:22:24,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:22:24,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:22:24,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:22:24,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 15:22:24,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:22:24,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:22:24,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:22:24,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:22:24,475 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:22:24,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:22:24,476 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:22:24,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:22:24,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:22:24,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:22:24,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:22:24,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:22:24,478 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 15:22:24,479 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 15:22:24,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:22:24,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:22:24,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:22:24,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:22:24,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:22:24,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:22:24,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:22:24,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:22:24,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:22:24,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:22:24,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:22:24,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:22:24,482 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 15:22:24,482 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 15:22:24,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:22:24,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:22:24,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 15:22:24,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7e30ef8cec89818712ef1a5b90083d064da205 [2020-11-29 15:22:24,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:22:24,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:22:24,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:22:24,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:22:24,943 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:22:24,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c [2020-11-29 15:22:25,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ca9e063/16f30a9dde074c5c87c43aecc091b2b8/FLAG24e00554c [2020-11-29 15:22:25,618 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:22:25,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c [2020-11-29 15:22:25,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ca9e063/16f30a9dde074c5c87c43aecc091b2b8/FLAG24e00554c [2020-11-29 15:22:25,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ca9e063/16f30a9dde074c5c87c43aecc091b2b8 [2020-11-29 15:22:25,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:22:25,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:22:25,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:22:25,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:22:25,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:22:25,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:22:25" (1/1) ... [2020-11-29 15:22:26,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629ef67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:25, skipping insertion in model container [2020-11-29 15:22:26,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:22:25" (1/1) ... [2020-11-29 15:22:26,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:22:26,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:22:26,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:22:26,321 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:22:26,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:22:26,404 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:22:26,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26 WrapperNode [2020-11-29 15:22:26,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:22:26,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:22:26,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:22:26,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:22:26,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:22:26,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:22:26,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:22:26,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:22:26,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (1/1) ... [2020-11-29 15:22:26,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:22:26,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:22:26,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:22:26,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:22:26,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (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 [2020-11-29 15:22:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 15:22:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:22:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 15:22:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 15:22:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:22:26,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:22:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 15:22:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 15:22:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:22:48,647 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:22:48,648 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 15:22:48,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:22:48 BoogieIcfgContainer [2020-11-29 15:22:48,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:22:48,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:22:48,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:22:48,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:22:48,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:22:25" (1/3) ... [2020-11-29 15:22:48,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cf2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:22:48, skipping insertion in model container [2020-11-29 15:22:48,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:22:26" (2/3) ... [2020-11-29 15:22:48,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cf2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:22:48, skipping insertion in model container [2020-11-29 15:22:48,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:22:48" (3/3) ... [2020-11-29 15:22:48,660 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2020-11-29 15:22:48,676 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:22:48,680 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:22:48,694 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:22:48,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:22:48,723 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:22:48,723 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:22:48,723 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:22:48,724 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:22:48,724 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:22:48,724 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:22:48,724 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:22:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-29 15:22:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:22:48,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:22:48,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:22:48,752 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:22:48,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:22:48,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2020-11-29 15:22:48,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:22:48,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771825131] [2020-11-29 15:22:48,774 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 [2020-11-29 15:22:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:22:49,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 15:22:49,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:22:49,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:22:49,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:22:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:22:49,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771825131] [2020-11-29 15:22:49,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:22:49,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 15:22:49,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40535828] [2020-11-29 15:22:49,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:22:49,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:22:49,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:22:49,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:22:49,614 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-29 15:22:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:22:49,634 INFO L93 Difference]: Finished difference Result 59 states and 93 transitions. [2020-11-29 15:22:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:22:49,636 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 15:22:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:22:49,645 INFO L225 Difference]: With dead ends: 59 [2020-11-29 15:22:49,646 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 15:22:49,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:22:49,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 15:22:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 15:22:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 15:22:49,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-11-29 15:22:49,685 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2020-11-29 15:22:49,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:22:49,686 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-11-29 15:22:49,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:22:49,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-29 15:22:49,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:22:49,687 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:22:49,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:22:49,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 15:22:49,901 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:22:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:22:49,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2020-11-29 15:22:49,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:22:49,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542564337] [2020-11-29 15:22:49,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 15:22:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:22:50,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 15:22:50,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:22:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:22:50,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:22:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:22:50,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542564337] [2020-11-29 15:22:50,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:22:50,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 15:22:50,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426631473] [2020-11-29 15:22:50,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 15:22:50,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:22:50,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 15:22:50,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 15:22:50,854 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 6 states. [2020-11-29 15:22:53,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:22:53,157 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2020-11-29 15:22:53,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 15:22:53,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-29 15:22:53,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:22:53,159 INFO L225 Difference]: With dead ends: 32 [2020-11-29 15:22:53,159 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 15:22:53,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 15:22:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 15:22:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 15:22:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 15:22:53,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-11-29 15:22:53,164 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-11-29 15:22:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:22:53,165 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-11-29 15:22:53,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 15:22:53,165 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-11-29 15:22:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 15:22:53,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:22:53,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:22:53,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 15:22:53,379 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:22:53,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:22:53,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2020-11-29 15:22:53,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:22:53,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605996111] [2020-11-29 15:22:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 15:22:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:22:53,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 15:22:53,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:22:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:22:54,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:22:56,624 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_logf_~x c_ULTIMATE.start___ieee754_logf_~x) c_~zero_log~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) is different from false [2020-11-29 15:22:58,660 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_logf_~x c_ULTIMATE.start___ieee754_logf_~x) c_~zero_log~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) is different from true [2020-11-29 15:22:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:22:58,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605996111] [2020-11-29 15:22:58,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:22:58,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 15:22:58,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600603343] [2020-11-29 15:22:58,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 15:22:58,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:22:58,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 15:22:58,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=54, Unknown=2, NotChecked=14, Total=90 [2020-11-29 15:22:58,691 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 10 states. [2020-11-29 15:22:59,793 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-29 15:22:59,946 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 15:22:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:22:59,948 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-29 15:22:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 15:22:59,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-29 15:22:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:22:59,950 INFO L225 Difference]: With dead ends: 12 [2020-11-29 15:22:59,950 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 15:22:59,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=44, Invalid=90, Unknown=2, NotChecked=20, Total=156 [2020-11-29 15:22:59,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 15:22:59,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 15:22:59,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 15:22:59,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 15:22:59,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-29 15:22:59,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:22:59,953 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 15:22:59,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 15:22:59,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 15:22:59,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 15:23:00,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 15:23:00,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 15:23:00,550 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 16 [2020-11-29 15:23:00,561 INFO L262 CegarLoopResult]: For program point L126(lines 126 129) no Hoare annotation was computed. [2020-11-29 15:23:00,561 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 15:23:00,561 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 15:23:00,561 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 15:23:00,561 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 15:23:00,562 INFO L262 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-11-29 15:23:00,562 INFO L262 CegarLoopResult]: For program point L70(lines 70 86) no Hoare annotation was computed. [2020-11-29 15:23:00,562 INFO L262 CegarLoopResult]: For program point L54-1(lines 54 58) no Hoare annotation was computed. [2020-11-29 15:23:00,562 INFO L258 CegarLoopResult]: At program point L54-2(lines 54 58) the Hoare annotation is: false [2020-11-29 15:23:00,562 INFO L262 CegarLoopResult]: For program point L71(lines 71 78) no Hoare annotation was computed. [2020-11-29 15:23:00,562 INFO L262 CegarLoopResult]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2020-11-29 15:23:00,563 INFO L258 CegarLoopResult]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x))) [2020-11-29 15:23:00,563 INFO L262 CegarLoopResult]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2020-11-29 15:23:00,563 INFO L262 CegarLoopResult]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2020-11-29 15:23:00,564 INFO L258 CegarLoopResult]: At program point L63-2(lines 63 67) the Hoare annotation is: false [2020-11-29 15:23:00,564 INFO L262 CegarLoopResult]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2020-11-29 15:23:00,564 INFO L258 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) [2020-11-29 15:23:00,564 INFO L262 CegarLoopResult]: For program point L80(lines 80 85) no Hoare annotation was computed. [2020-11-29 15:23:00,564 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-29 15:23:00,564 INFO L262 CegarLoopResult]: For program point L105(lines 105 108) no Hoare annotation was computed. [2020-11-29 15:23:00,564 INFO L262 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2020-11-29 15:23:00,565 INFO L262 CegarLoopResult]: For program point L97(lines 97 109) no Hoare annotation was computed. [2020-11-29 15:23:00,565 INFO L265 CegarLoopResult]: At program point L131(lines 115 132) the Hoare annotation is: true [2020-11-29 15:23:00,565 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 15:23:00,566 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 15:23:00,566 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-11-29 15:23:00,566 INFO L262 CegarLoopResult]: For program point L99(lines 99 103) no Hoare annotation was computed. [2020-11-29 15:23:00,566 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 15:23:00,566 INFO L258 CegarLoopResult]: At program point L108(lines 34 110) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) [2020-11-29 15:23:00,567 INFO L262 CegarLoopResult]: For program point L51(lines 51 59) no Hoare annotation was computed. [2020-11-29 15:23:00,567 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 59) no Hoare annotation was computed. [2020-11-29 15:23:00,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,589 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:23:00 BoogieIcfgContainer [2020-11-29 15:23:00,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:23:00,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:23:00,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:23:00,607 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:23:00,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:22:48" (3/4) ... [2020-11-29 15:23:00,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 15:23:00,630 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-29 15:23:00,631 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 15:23:00,631 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:23:00,632 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:23:00,661 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) [2020-11-29 15:23:00,662 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2020-11-29 15:23:00,662 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2020-11-29 15:23:00,704 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 15:23:00,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:23:00,706 INFO L168 Benchmark]: Toolchain (without parser) took 34723.07 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 40.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2020-11-29 15:23:00,707 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 21.4 MB in the beginning and 21.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:23:00,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.65 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 26.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-29 15:23:00,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.67 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 24.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:23:00,709 INFO L168 Benchmark]: Boogie Preprocessor took 53.52 ms. Allocated memory is still 52.4 MB. Free memory was 24.8 MB in the beginning and 36.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-11-29 15:23:00,711 INFO L168 Benchmark]: RCFGBuilder took 22123.11 ms. Allocated memory is still 52.4 MB. Free memory was 36.0 MB in the beginning and 25.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-29 15:23:00,712 INFO L168 Benchmark]: TraceAbstraction took 11953.75 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 24.6 MB in the beginning and 24.1 MB in the end (delta: 587.2 kB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-11-29 15:23:00,713 INFO L168 Benchmark]: Witness Printer took 98.65 ms. Allocated memory is still 62.9 MB. Free memory was 24.1 MB in the beginning and 40.7 MB in the end (delta: -16.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:23:00,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 21.4 MB in the beginning and 21.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 414.65 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 26.8 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 56.67 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 24.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.52 ms. Allocated memory is still 52.4 MB. Free memory was 24.8 MB in the beginning and 36.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22123.11 ms. Allocated memory is still 52.4 MB. Free memory was 36.0 MB in the beginning and 25.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11953.75 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 24.6 MB in the beginning and 24.1 MB in the end (delta: 587.2 kB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 98.65 ms. Allocated memory is still 62.9 MB. Free memory was 24.1 MB in the beginning and 40.7 MB in the end (delta: -16.6 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 113]: Loop Invariant [2020-11-29 15:23:00,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 34]: Loop Invariant [2020-11-29 15:23:00,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,763 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,763 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,769 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,769 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,770 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,770 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,770 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,770 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,770 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant [2020-11-29 15:23:00,775 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,777 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,778 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:23:00,778 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,778 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 15:23:00,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:23:00,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 19 SDslu, 40 SDs, 0 SdLazy, 26 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 107 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 4134 SizeOfPredicates, 17 NumberOfNonLiveVariables, 162 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...