./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1032d.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032d.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 ............................................................................................................................................................................................................................................................................................................................................. 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 -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032d.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:53:20,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:20,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:20,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:20,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:20,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:20,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:20,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:20,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:20,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:20,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:20,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:20,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:20,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:20,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:20,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:20,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:20,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:20,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:20,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:20,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:20,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:20,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:20,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:20,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:20,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:20,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:20,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:20,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:20,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:20,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:20,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:20,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:20,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:20,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:20,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:20,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:20,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:20,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:20,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:20,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:20,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:53:20,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:20,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:20,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:20,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:20,524 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:20,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:20,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:20,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:53:20,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:20,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:20,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:20,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:20,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:20,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:20,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:20,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:20,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:20,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:20,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:20,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:20,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:20,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:20,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:20,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:20,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:20,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:53:20,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:53:20,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:20,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:20,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2020-07-28 17:53:20,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:20,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:20,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:20,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:20,895 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:20,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2020-07-28 17:53:20,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ccc461c1/00bcac2ea15944e188cfca4d6729cfb0/FLAG2f9c05ff5 [2020-07-28 17:53:21,461 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:21,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2020-07-28 17:53:21,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ccc461c1/00bcac2ea15944e188cfca4d6729cfb0/FLAG2f9c05ff5 [2020-07-28 17:53:21,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ccc461c1/00bcac2ea15944e188cfca4d6729cfb0 [2020-07-28 17:53:21,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:21,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:21,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:21,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:21,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:21,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:21" (1/1) ... [2020-07-28 17:53:21,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531c53f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:21, skipping insertion in model container [2020-07-28 17:53:21,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:21" (1/1) ... [2020-07-28 17:53:21,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:21,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:22,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:22,083 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:22,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:22,200 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:22,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22 WrapperNode [2020-07-28 17:53:22,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:22,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:22,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:22,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:22,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:22,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:22,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:22,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:22,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (1/1) ... [2020-07-28 17:53:22,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:22,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:22,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:22,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:22,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (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 [2020-07-28 17:53:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:53:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:53:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:53:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:53:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:22,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:22,878 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:53:22,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:22 BoogieIcfgContainer [2020-07-28 17:53:22,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:22,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:22,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:22,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:22,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:21" (1/3) ... [2020-07-28 17:53:22,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6717705a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:22, skipping insertion in model container [2020-07-28 17:53:22,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:22" (2/3) ... [2020-07-28 17:53:22,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6717705a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:22, skipping insertion in model container [2020-07-28 17:53:22,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:22" (3/3) ... [2020-07-28 17:53:22,896 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d.c [2020-07-28 17:53:22,905 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:22,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:22,923 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:22,943 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:22,943 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:22,943 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:22,943 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:22,943 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:22,944 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:22,944 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:22,944 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-28 17:53:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:53:22,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:22,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:22,968 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:22,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:22,974 INFO L82 PathProgramCache]: Analyzing trace with hash -592327338, now seen corresponding path program 1 times [2020-07-28 17:53:22,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:22,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451228299] [2020-07-28 17:53:22,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:23,114 INFO L280 TraceCheckUtils]: 0: Hoare triple {27#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {27#true} is VALID [2020-07-28 17:53:23,115 INFO L280 TraceCheckUtils]: 1: Hoare triple {27#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0);round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {27#true} is VALID [2020-07-28 17:53:23,116 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#true} assume !true; {28#false} is VALID [2020-07-28 17:53:23,116 INFO L280 TraceCheckUtils]: 3: Hoare triple {28#false} round_float_~exponent_less_127~0 := (if ~bitwiseAnd(round_float_~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(round_float_~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(round_float_~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {28#false} is VALID [2020-07-28 17:53:23,117 INFO L280 TraceCheckUtils]: 4: Hoare triple {28#false} assume !(round_float_~exponent_less_127~0 < 23); {28#false} is VALID [2020-07-28 17:53:23,117 INFO L280 TraceCheckUtils]: 5: Hoare triple {28#false} assume 128 == round_float_~exponent_less_127~0;round_float_#res := ~someBinaryArithmeticFLOAToperation(round_float_~x, round_float_~x); {28#false} is VALID [2020-07-28 17:53:23,117 INFO L280 TraceCheckUtils]: 6: Hoare triple {28#false} main_#t~ret6 := round_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~0;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~0; {28#false} is VALID [2020-07-28 17:53:23,118 INFO L280 TraceCheckUtils]: 7: Hoare triple {28#false} assume !true; {28#false} is VALID [2020-07-28 17:53:23,118 INFO L280 TraceCheckUtils]: 8: Hoare triple {28#false} isinf_float_~ix~0 := ~bitwiseAnd(isinf_float_~ix~0, 2147483647);isinf_float_#res := (if 2139095040 == isinf_float_~ix~0 then 1 else 0); {28#false} is VALID [2020-07-28 17:53:23,118 INFO L280 TraceCheckUtils]: 9: Hoare triple {28#false} main_#t~ret7 := isinf_float_#res;assume -2147483648 <= main_#t~ret7 && main_#t~ret7 <= 2147483647; {28#false} is VALID [2020-07-28 17:53:23,119 INFO L280 TraceCheckUtils]: 10: Hoare triple {28#false} assume 0 == main_#t~ret7;havoc main_#t~ret7; {28#false} is VALID [2020-07-28 17:53:23,119 INFO L280 TraceCheckUtils]: 11: Hoare triple {28#false} assume !false; {28#false} is VALID [2020-07-28 17:53:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:23,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451228299] [2020-07-28 17:53:23,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:23,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:53:23,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272961901] [2020-07-28 17:53:23,133 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:53:23,134 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:23,138 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:23,182 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:23,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:23,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:53:23,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:23,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:23,196 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-07-28 17:53:23,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:23,268 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2020-07-28 17:53:23,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:23,269 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:53:23,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 68 transitions. [2020-07-28 17:53:23,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 68 transitions. [2020-07-28 17:53:23,285 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 68 transitions. [2020-07-28 17:53:23,411 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:23,424 INFO L225 Difference]: With dead ends: 46 [2020-07-28 17:53:23,424 INFO L226 Difference]: Without dead ends: 21 [2020-07-28 17:53:23,428 INFO L675 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 [2020-07-28 17:53:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-28 17:53:23,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-28 17:53:23,467 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:23,468 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:23,469 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:23,469 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:23,472 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-07-28 17:53:23,473 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-07-28 17:53:23,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:23,473 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:23,474 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:23,474 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:23,477 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-07-28 17:53:23,477 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-07-28 17:53:23,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:23,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:23,478 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:23,479 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-28 17:53:23,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-07-28 17:53:23,483 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2020-07-28 17:53:23,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:23,484 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-07-28 17:53:23,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:23,484 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-07-28 17:53:23,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:53:23,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:23,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:23,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:53:23,486 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:23,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:23,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1651159701, now seen corresponding path program 1 times [2020-07-28 17:53:23,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:23,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366717742] [2020-07-28 17:53:23,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:23,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:23,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:53:23,688 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:223) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:53:23,696 INFO L168 Benchmark]: Toolchain (without parser) took 1851.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 957.6 MB in the beginning and 1.0 GB in the end (delta: -80.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:23,696 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:23,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:23,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:23,699 INFO L168 Benchmark]: Boogie Preprocessor took 43.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:23,700 INFO L168 Benchmark]: RCFGBuilder took 579.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:23,701 INFO L168 Benchmark]: TraceAbstraction took 808.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:23,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 354.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 579.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 808.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:53:25,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:25,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:25,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:25,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:25,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:25,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:25,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:25,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:25,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:25,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:25,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:25,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:25,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:25,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:25,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:25,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:25,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:25,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:25,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:25,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:25,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:25,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:25,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:25,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:25,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:25,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:25,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:25,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:25,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:25,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:25,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:25,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:25,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:25,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:25,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:25,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:25,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:25,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:25,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:25,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:25,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:53:25,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:25,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:25,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:25,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:25,816 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:25,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:25,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:25,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:25,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:25,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:25,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:25,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:25,818 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:53:25,818 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:53:25,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:25,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:25,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:25,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:25,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:25,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:25,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:25,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:25,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:25,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:25,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:25,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:25,821 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:53:25,821 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:53:25,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:25,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:25,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:53:25,822 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2020-07-28 17:53:26,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:26,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:26,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:26,159 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:26,160 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:26,161 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2020-07-28 17:53:26,241 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067493db5/4ab45c5f47d146dbacc36df47ec382fc/FLAG8b80a2bd3 [2020-07-28 17:53:26,791 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:26,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2020-07-28 17:53:26,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067493db5/4ab45c5f47d146dbacc36df47ec382fc/FLAG8b80a2bd3 [2020-07-28 17:53:27,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067493db5/4ab45c5f47d146dbacc36df47ec382fc [2020-07-28 17:53:27,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:27,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:27,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:27,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:27,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:27,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd7d79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27, skipping insertion in model container [2020-07-28 17:53:27,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:27,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:27,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:27,403 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:27,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:27,526 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:27,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27 WrapperNode [2020-07-28 17:53:27,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:27,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:27,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:27,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:27,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:27,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:27,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:27,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:27,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (1/1) ... [2020-07-28 17:53:27,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:27,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:27,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:27,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:27,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (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 [2020-07-28 17:53:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:53:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:53:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:53:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:53:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:28,143 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:28,143 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:53:28,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:28 BoogieIcfgContainer [2020-07-28 17:53:28,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:28,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:28,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:28,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:28,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:27" (1/3) ... [2020-07-28 17:53:28,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9d1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:28, skipping insertion in model container [2020-07-28 17:53:28,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:27" (2/3) ... [2020-07-28 17:53:28,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9d1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:28, skipping insertion in model container [2020-07-28 17:53:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:28" (3/3) ... [2020-07-28 17:53:28,157 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d.c [2020-07-28 17:53:28,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:28,175 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:28,188 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:28,213 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:28,213 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:28,213 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:28,213 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:28,214 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:28,214 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:28,214 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:28,214 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-28 17:53:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:53:28,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:28,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:28,236 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:28,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:28,241 INFO L82 PathProgramCache]: Analyzing trace with hash -592327338, now seen corresponding path program 1 times [2020-07-28 17:53:28,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:28,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111294062] [2020-07-28 17:53:28,256 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 [2020-07-28 17:53:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:28,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:53:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:28,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:28,444 INFO L280 TraceCheckUtils]: 0: Hoare triple {27#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {27#true} is VALID [2020-07-28 17:53:28,445 INFO L280 TraceCheckUtils]: 1: Hoare triple {27#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {27#true} is VALID [2020-07-28 17:53:28,446 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#true} assume !true; {28#false} is VALID [2020-07-28 17:53:28,446 INFO L280 TraceCheckUtils]: 3: Hoare triple {28#false} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {28#false} is VALID [2020-07-28 17:53:28,447 INFO L280 TraceCheckUtils]: 4: Hoare triple {28#false} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {28#false} is VALID [2020-07-28 17:53:28,447 INFO L280 TraceCheckUtils]: 5: Hoare triple {28#false} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {28#false} is VALID [2020-07-28 17:53:28,447 INFO L280 TraceCheckUtils]: 6: Hoare triple {28#false} main_#t~ret6 := round_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~0;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~0; {28#false} is VALID [2020-07-28 17:53:28,448 INFO L280 TraceCheckUtils]: 7: Hoare triple {28#false} assume !true; {28#false} is VALID [2020-07-28 17:53:28,448 INFO L280 TraceCheckUtils]: 8: Hoare triple {28#false} isinf_float_~ix~0 := ~bvand32(2147483647bv32, isinf_float_~ix~0);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~0 then 1bv32 else 0bv32); {28#false} is VALID [2020-07-28 17:53:28,448 INFO L280 TraceCheckUtils]: 9: Hoare triple {28#false} main_#t~ret7 := isinf_float_#res; {28#false} is VALID [2020-07-28 17:53:28,449 INFO L280 TraceCheckUtils]: 10: Hoare triple {28#false} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {28#false} is VALID [2020-07-28 17:53:28,449 INFO L280 TraceCheckUtils]: 11: Hoare triple {28#false} assume !false; {28#false} is VALID [2020-07-28 17:53:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:28,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:28,486 INFO L280 TraceCheckUtils]: 11: Hoare triple {28#false} assume !false; {28#false} is VALID [2020-07-28 17:53:28,486 INFO L280 TraceCheckUtils]: 10: Hoare triple {28#false} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {28#false} is VALID [2020-07-28 17:53:28,487 INFO L280 TraceCheckUtils]: 9: Hoare triple {28#false} main_#t~ret7 := isinf_float_#res; {28#false} is VALID [2020-07-28 17:53:28,487 INFO L280 TraceCheckUtils]: 8: Hoare triple {28#false} isinf_float_~ix~0 := ~bvand32(2147483647bv32, isinf_float_~ix~0);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~0 then 1bv32 else 0bv32); {28#false} is VALID [2020-07-28 17:53:28,487 INFO L280 TraceCheckUtils]: 7: Hoare triple {28#false} assume !true; {28#false} is VALID [2020-07-28 17:53:28,488 INFO L280 TraceCheckUtils]: 6: Hoare triple {28#false} main_#t~ret6 := round_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~0;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~0; {28#false} is VALID [2020-07-28 17:53:28,488 INFO L280 TraceCheckUtils]: 5: Hoare triple {28#false} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {28#false} is VALID [2020-07-28 17:53:28,488 INFO L280 TraceCheckUtils]: 4: Hoare triple {28#false} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {28#false} is VALID [2020-07-28 17:53:28,489 INFO L280 TraceCheckUtils]: 3: Hoare triple {28#false} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {28#false} is VALID [2020-07-28 17:53:28,491 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#true} assume !true; {28#false} is VALID [2020-07-28 17:53:28,492 INFO L280 TraceCheckUtils]: 1: Hoare triple {27#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {27#true} is VALID [2020-07-28 17:53:28,492 INFO L280 TraceCheckUtils]: 0: Hoare triple {27#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {27#true} is VALID [2020-07-28 17:53:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:28,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111294062] [2020-07-28 17:53:28,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:28,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:53:28,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810292426] [2020-07-28 17:53:28,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:53:28,514 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:28,518 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:28,577 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:28,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:28,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:28,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:28,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:28,592 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-07-28 17:53:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:28,707 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2020-07-28 17:53:28,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:28,708 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:53:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 68 transitions. [2020-07-28 17:53:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 68 transitions. [2020-07-28 17:53:28,721 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 68 transitions. [2020-07-28 17:53:28,865 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:28,878 INFO L225 Difference]: With dead ends: 46 [2020-07-28 17:53:28,878 INFO L226 Difference]: Without dead ends: 21 [2020-07-28 17:53:28,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:28,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-28 17:53:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-28 17:53:28,920 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:28,920 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:28,921 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:28,921 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:28,925 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-07-28 17:53:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-07-28 17:53:28,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:28,926 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:28,927 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:28,927 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2020-07-28 17:53:28,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:28,930 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-07-28 17:53:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-07-28 17:53:28,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:28,931 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:28,932 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:28,932 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-28 17:53:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-07-28 17:53:28,937 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2020-07-28 17:53:28,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:28,938 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-07-28 17:53:28,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-07-28 17:53:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:53:28,939 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:28,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:29,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:53:29,154 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:29,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:29,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1651159701, now seen corresponding path program 1 times [2020-07-28 17:53:29,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:29,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035271342] [2020-07-28 17:53:29,157 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 [2020-07-28 17:53:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:29,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-28 17:53:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:29,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:29,451 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:53:29,549 INFO L280 TraceCheckUtils]: 0: Hoare triple {220#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {225#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2020-07-28 17:53:29,550 INFO L280 TraceCheckUtils]: 1: Hoare triple {225#(= currentRoundingMode roundNearestTiesToEven)} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:29,552 INFO L280 TraceCheckUtils]: 2: Hoare triple {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:29,553 INFO L280 TraceCheckUtils]: 3: Hoare triple {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} goto; {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:29,555 INFO L280 TraceCheckUtils]: 4: Hoare triple {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:29,556 INFO L280 TraceCheckUtils]: 5: Hoare triple {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:29,557 INFO L280 TraceCheckUtils]: 6: Hoare triple {229#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {245#(= (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) |ULTIMATE.start_round_float_#res|)} is VALID [2020-07-28 17:53:29,558 INFO L280 TraceCheckUtils]: 7: Hoare triple {245#(= (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) |ULTIMATE.start_round_float_#res|)} main_#t~ret6 := round_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~0;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~0; {249#(= ULTIMATE.start_isinf_float_~x (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:29,562 INFO L280 TraceCheckUtils]: 8: Hoare triple {249#(= ULTIMATE.start_isinf_float_~x (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))))} call isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);call isinf_float_#t~mem4 := read~intINTTYPE4(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);isinf_float_~ix~0 := isinf_float_#t~mem4;call write~intFLOATTYPE4(isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);havoc isinf_float_#t~mem4;havoc isinf_float_#t~union5;call ULTIMATE.dealloc(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset);havoc isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset; {253#(= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~0)) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:29,563 INFO L280 TraceCheckUtils]: 9: Hoare triple {253#(= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~0)) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))))} goto; {253#(= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~0)) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:29,565 INFO L280 TraceCheckUtils]: 10: Hoare triple {253#(= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~0)) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))))} isinf_float_~ix~0 := ~bvand32(2147483647bv32, isinf_float_~ix~0);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~0 then 1bv32 else 0bv32); {260#(= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:29,567 INFO L280 TraceCheckUtils]: 11: Hoare triple {260#(= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32))} main_#t~ret7 := isinf_float_#res; {264#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret7|)} is VALID [2020-07-28 17:53:29,569 INFO L280 TraceCheckUtils]: 12: Hoare triple {264#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret7|)} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {221#false} is VALID [2020-07-28 17:53:29,569 INFO L280 TraceCheckUtils]: 13: Hoare triple {221#false} assume !false; {221#false} is VALID [2020-07-28 17:53:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:29,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:30,624 INFO L280 TraceCheckUtils]: 13: Hoare triple {221#false} assume !false; {221#false} is VALID [2020-07-28 17:53:30,626 INFO L280 TraceCheckUtils]: 12: Hoare triple {274#(not (= |ULTIMATE.start_main_#t~ret7| (_ bv0 32)))} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {221#false} is VALID [2020-07-28 17:53:30,627 INFO L280 TraceCheckUtils]: 11: Hoare triple {278#(not (= |ULTIMATE.start_isinf_float_#res| (_ bv0 32)))} main_#t~ret7 := isinf_float_#res; {274#(not (= |ULTIMATE.start_main_#t~ret7| (_ bv0 32)))} is VALID [2020-07-28 17:53:30,628 INFO L280 TraceCheckUtils]: 10: Hoare triple {282#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~0) (_ bv2155872256 32)) (_ bv0 32))} isinf_float_~ix~0 := ~bvand32(2147483647bv32, isinf_float_~ix~0);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~0 then 1bv32 else 0bv32); {278#(not (= |ULTIMATE.start_isinf_float_#res| (_ bv0 32)))} is VALID [2020-07-28 17:53:30,628 INFO L280 TraceCheckUtils]: 9: Hoare triple {282#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~0) (_ bv2155872256 32)) (_ bv0 32))} goto; {282#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~0) (_ bv2155872256 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:30,632 INFO L280 TraceCheckUtils]: 8: Hoare triple {289#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) ULTIMATE.start_isinf_float_~x))))} call isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);call isinf_float_#t~mem4 := read~intINTTYPE4(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);isinf_float_~ix~0 := isinf_float_#t~mem4;call write~intFLOATTYPE4(isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);havoc isinf_float_#t~mem4;havoc isinf_float_#t~union5;call ULTIMATE.dealloc(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset);havoc isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset; {282#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~0) (_ bv2155872256 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:30,634 INFO L280 TraceCheckUtils]: 7: Hoare triple {293#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) |ULTIMATE.start_round_float_#res|)) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} main_#t~ret6 := round_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~0;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~0; {289#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) ULTIMATE.start_isinf_float_~x))))} is VALID [2020-07-28 17:53:30,639 INFO L280 TraceCheckUtils]: 6: Hoare triple {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {293#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) |ULTIMATE.start_round_float_#res|)) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} is VALID [2020-07-28 17:53:30,640 INFO L280 TraceCheckUtils]: 5: Hoare triple {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} is VALID [2020-07-28 17:53:30,641 INFO L280 TraceCheckUtils]: 4: Hoare triple {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} is VALID [2020-07-28 17:53:30,641 INFO L280 TraceCheckUtils]: 3: Hoare triple {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} goto; {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} is VALID [2020-07-28 17:53:30,642 INFO L280 TraceCheckUtils]: 2: Hoare triple {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} is VALID [2020-07-28 17:53:30,654 INFO L280 TraceCheckUtils]: 1: Hoare triple {220#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {297#(forall ((v_ULTIMATE.start_isinf_float_~ix~0_10 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~0_10) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~0_10)) (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~0_10))))} is VALID [2020-07-28 17:53:30,654 INFO L280 TraceCheckUtils]: 0: Hoare triple {220#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {220#true} is VALID [2020-07-28 17:53:30,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:30,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035271342] [2020-07-28 17:53:30,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:30,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-07-28 17:53:30,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297765951] [2020-07-28 17:53:30,659 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2020-07-28 17:53:30,659 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:30,660 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2020-07-28 17:53:30,807 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:30,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-28 17:53:30,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:30,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-28 17:53:30,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-07-28 17:53:30,809 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 15 states. [2020-07-28 17:53:32,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:32,274 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-07-28 17:53:32,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 17:53:32,275 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2020-07-28 17:53:32,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:32,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:53:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 32 transitions. [2020-07-28 17:53:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:53:32,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 32 transitions. [2020-07-28 17:53:32,279 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 32 transitions. [2020-07-28 17:53:32,380 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:32,381 INFO L225 Difference]: With dead ends: 29 [2020-07-28 17:53:32,381 INFO L226 Difference]: Without dead ends: 20 [2020-07-28 17:53:32,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2020-07-28 17:53:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-28 17:53:32,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-07-28 17:53:32,389 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:32,389 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 20 states. [2020-07-28 17:53:32,389 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2020-07-28 17:53:32,389 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2020-07-28 17:53:32,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:32,391 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-07-28 17:53:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-07-28 17:53:32,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:32,391 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:32,392 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2020-07-28 17:53:32,392 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2020-07-28 17:53:32,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:32,393 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-07-28 17:53:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-07-28 17:53:32,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:32,394 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:32,394 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:32,394 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-28 17:53:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-07-28 17:53:32,396 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2020-07-28 17:53:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:32,396 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-07-28 17:53:32,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-28 17:53:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-07-28 17:53:32,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 17:53:32,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:32,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:32,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:53:32,609 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:32,610 INFO L82 PathProgramCache]: Analyzing trace with hash 842294842, now seen corresponding path program 1 times [2020-07-28 17:53:32,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:32,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757173878] [2020-07-28 17:53:32,614 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 [2020-07-28 17:53:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:32,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:53:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:32,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:32,834 INFO L280 TraceCheckUtils]: 0: Hoare triple {425#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {425#true} is VALID [2020-07-28 17:53:32,840 INFO L280 TraceCheckUtils]: 1: Hoare triple {425#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {433#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:32,845 INFO L280 TraceCheckUtils]: 2: Hoare triple {433#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {437#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:32,846 INFO L280 TraceCheckUtils]: 3: Hoare triple {437#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} goto; {437#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:32,851 INFO L280 TraceCheckUtils]: 4: Hoare triple {437#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {444#(exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0)))} is VALID [2020-07-28 17:53:32,855 INFO L280 TraceCheckUtils]: 5: Hoare triple {444#(exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0)))} assume ~bvslt32(round_float_~exponent_less_127~0, 23bv32); {426#false} is VALID [2020-07-28 17:53:32,855 INFO L280 TraceCheckUtils]: 6: Hoare triple {426#false} assume ~bvslt32(round_float_~exponent_less_127~0, 0bv32);round_float_~w~0 := ~bvand32(2147483648bv32, round_float_~w~0); {426#false} is VALID [2020-07-28 17:53:32,856 INFO L280 TraceCheckUtils]: 7: Hoare triple {426#false} assume 4294967295bv32 == round_float_~exponent_less_127~0;round_float_~w~0 := ~bvor32(1065353216bv32, round_float_~w~0); {426#false} is VALID [2020-07-28 17:53:32,856 INFO L280 TraceCheckUtils]: 8: Hoare triple {426#false} call round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(round_float_~w~0, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);call round_float_#t~mem2 := read~intFLOATTYPE4(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);round_float_~x := round_float_#t~mem2;call write~intINTTYPE4(round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);havoc round_float_#t~mem2;havoc round_float_#t~union3;call ULTIMATE.dealloc(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset);havoc round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset; {426#false} is VALID [2020-07-28 17:53:32,856 INFO L280 TraceCheckUtils]: 9: Hoare triple {426#false} goto; {426#false} is VALID [2020-07-28 17:53:32,857 INFO L280 TraceCheckUtils]: 10: Hoare triple {426#false} round_float_#res := round_float_~x; {426#false} is VALID [2020-07-28 17:53:32,857 INFO L280 TraceCheckUtils]: 11: Hoare triple {426#false} main_#t~ret6 := round_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~0;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~0; {426#false} is VALID [2020-07-28 17:53:32,857 INFO L280 TraceCheckUtils]: 12: Hoare triple {426#false} call isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);call isinf_float_#t~mem4 := read~intINTTYPE4(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);isinf_float_~ix~0 := isinf_float_#t~mem4;call write~intFLOATTYPE4(isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);havoc isinf_float_#t~mem4;havoc isinf_float_#t~union5;call ULTIMATE.dealloc(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset);havoc isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset; {426#false} is VALID [2020-07-28 17:53:32,858 INFO L280 TraceCheckUtils]: 13: Hoare triple {426#false} goto; {426#false} is VALID [2020-07-28 17:53:32,858 INFO L280 TraceCheckUtils]: 14: Hoare triple {426#false} isinf_float_~ix~0 := ~bvand32(2147483647bv32, isinf_float_~ix~0);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~0 then 1bv32 else 0bv32); {426#false} is VALID [2020-07-28 17:53:32,858 INFO L280 TraceCheckUtils]: 15: Hoare triple {426#false} main_#t~ret7 := isinf_float_#res; {426#false} is VALID [2020-07-28 17:53:32,859 INFO L280 TraceCheckUtils]: 16: Hoare triple {426#false} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {426#false} is VALID [2020-07-28 17:53:32,859 INFO L280 TraceCheckUtils]: 17: Hoare triple {426#false} assume !false; {426#false} is VALID [2020-07-28 17:53:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:32,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:33,034 INFO L280 TraceCheckUtils]: 17: Hoare triple {426#false} assume !false; {426#false} is VALID [2020-07-28 17:53:33,034 INFO L280 TraceCheckUtils]: 16: Hoare triple {426#false} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {426#false} is VALID [2020-07-28 17:53:33,035 INFO L280 TraceCheckUtils]: 15: Hoare triple {426#false} main_#t~ret7 := isinf_float_#res; {426#false} is VALID [2020-07-28 17:53:33,035 INFO L280 TraceCheckUtils]: 14: Hoare triple {426#false} isinf_float_~ix~0 := ~bvand32(2147483647bv32, isinf_float_~ix~0);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~0 then 1bv32 else 0bv32); {426#false} is VALID [2020-07-28 17:53:33,035 INFO L280 TraceCheckUtils]: 13: Hoare triple {426#false} goto; {426#false} is VALID [2020-07-28 17:53:33,036 INFO L280 TraceCheckUtils]: 12: Hoare triple {426#false} call isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);call isinf_float_#t~mem4 := read~intINTTYPE4(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);isinf_float_~ix~0 := isinf_float_#t~mem4;call write~intFLOATTYPE4(isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);havoc isinf_float_#t~mem4;havoc isinf_float_#t~union5;call ULTIMATE.dealloc(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset);havoc isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset; {426#false} is VALID [2020-07-28 17:53:33,036 INFO L280 TraceCheckUtils]: 11: Hoare triple {426#false} main_#t~ret6 := round_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~0;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~0; {426#false} is VALID [2020-07-28 17:53:33,036 INFO L280 TraceCheckUtils]: 10: Hoare triple {426#false} round_float_#res := round_float_~x; {426#false} is VALID [2020-07-28 17:53:33,037 INFO L280 TraceCheckUtils]: 9: Hoare triple {426#false} goto; {426#false} is VALID [2020-07-28 17:53:33,037 INFO L280 TraceCheckUtils]: 8: Hoare triple {426#false} call round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(round_float_~w~0, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);call round_float_#t~mem2 := read~intFLOATTYPE4(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);round_float_~x := round_float_#t~mem2;call write~intINTTYPE4(round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);havoc round_float_#t~mem2;havoc round_float_#t~union3;call ULTIMATE.dealloc(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset);havoc round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset; {426#false} is VALID [2020-07-28 17:53:33,037 INFO L280 TraceCheckUtils]: 7: Hoare triple {426#false} assume 4294967295bv32 == round_float_~exponent_less_127~0;round_float_~w~0 := ~bvor32(1065353216bv32, round_float_~w~0); {426#false} is VALID [2020-07-28 17:53:33,037 INFO L280 TraceCheckUtils]: 6: Hoare triple {426#false} assume ~bvslt32(round_float_~exponent_less_127~0, 0bv32);round_float_~w~0 := ~bvand32(2147483648bv32, round_float_~w~0); {426#false} is VALID [2020-07-28 17:53:33,044 INFO L280 TraceCheckUtils]: 5: Hoare triple {520#(not (bvslt ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv23 32)))} assume ~bvslt32(round_float_~exponent_less_127~0, 23bv32); {426#false} is VALID [2020-07-28 17:53:33,045 INFO L280 TraceCheckUtils]: 4: Hoare triple {524#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {520#(not (bvslt ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv23 32)))} is VALID [2020-07-28 17:53:33,046 INFO L280 TraceCheckUtils]: 3: Hoare triple {524#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} goto; {524#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} is VALID [2020-07-28 17:53:33,053 INFO L280 TraceCheckUtils]: 2: Hoare triple {531#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 32))) (or (not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_1_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))) (not (= ULTIMATE.start_round_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_1_3) ((_ extract 30 23) v_skolemized_v_prenex_1_3) ((_ extract 22 0) v_skolemized_v_prenex_1_3))))))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {524#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} is VALID [2020-07-28 17:53:33,056 INFO L280 TraceCheckUtils]: 1: Hoare triple {425#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {531#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 32))) (or (not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_1_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))) (not (= ULTIMATE.start_round_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_1_3) ((_ extract 30 23) v_skolemized_v_prenex_1_3) ((_ extract 22 0) v_skolemized_v_prenex_1_3))))))} is VALID [2020-07-28 17:53:33,057 INFO L280 TraceCheckUtils]: 0: Hoare triple {425#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {425#true} is VALID [2020-07-28 17:53:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:33,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757173878] [2020-07-28 17:53:33,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:33,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:53:33,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186667745] [2020-07-28 17:53:33,062 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-07-28 17:53:33,063 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:33,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:53:33,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:33,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:53:33,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:33,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:53:33,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:53:33,131 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-07-28 17:53:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:33,353 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-07-28 17:53:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:53:33,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-07-28 17:53:33,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:33,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-07-28 17:53:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:33,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-07-28 17:53:33,357 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 21 transitions. [2020-07-28 17:53:33,414 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:33,415 INFO L225 Difference]: With dead ends: 20 [2020-07-28 17:53:33,415 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:53:33,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:53:33,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:53:33,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:53:33,416 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:33,416 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:33,416 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:33,416 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:33,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:33,417 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:33,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:33,417 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:33,417 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:33,418 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:33,418 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:33,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:33,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:33,418 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:33,419 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:33,419 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:33,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:53:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:53:33,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-28 17:53:33,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:33,419 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:53:33,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:53:33,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:33,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:33,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:53:33,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:53:33,793 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-07-28 17:53:33,793 INFO L268 CegarLoopResult]: For program point L77(lines 77 80) no Hoare annotation was computed. [2020-07-28 17:53:33,793 INFO L268 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-07-28 17:53:33,793 INFO L268 CegarLoopResult]: For program point L32(lines 32 34) no Hoare annotation was computed. [2020-07-28 17:53:33,809 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:53:33,809 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:53:33,809 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:53:33,809 INFO L268 CegarLoopResult]: For program point L24(lines 24 45) no Hoare annotation was computed. [2020-07-28 17:53:33,809 INFO L268 CegarLoopResult]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2020-07-28 17:53:33,810 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 78) no Hoare annotation was computed. [2020-07-28 17:53:33,812 INFO L264 CegarLoopResult]: At program point L57-2(lines 57 61) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse1 .cse1)))) (and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ULTIMATE.start_isinf_float_~x .cse0) (= .cse0 |ULTIMATE.start_round_float_#res|) (= currentRoundingMode roundNearestTiesToEven))) [2020-07-28 17:53:33,812 INFO L268 CegarLoopResult]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2020-07-28 17:53:33,812 INFO L271 CegarLoopResult]: At program point L82(lines 65 83) the Hoare annotation is: true [2020-07-28 17:53:33,812 INFO L268 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-07-28 17:53:33,813 INFO L264 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2020-07-28 17:53:33,813 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-07-28 17:53:33,813 INFO L268 CegarLoopResult]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2020-07-28 17:53:33,813 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:53:33,813 INFO L268 CegarLoopResult]: For program point L25(lines 25 38) no Hoare annotation was computed. [2020-07-28 17:53:33,814 INFO L268 CegarLoopResult]: For program point L46(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:33,814 INFO L268 CegarLoopResult]: For program point L46-1(lines 11 52) no Hoare annotation was computed. [2020-07-28 17:53:33,814 INFO L268 CegarLoopResult]: For program point L46-2(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:33,815 INFO L264 CegarLoopResult]: At program point L63(lines 55 64) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse1 .cse1)))) (and (= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~0) (_ bv2155872256 32)) (_ bv0 32)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ULTIMATE.start_isinf_float_~x .cse0) (= .cse0 |ULTIMATE.start_round_float_#res|) (= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven))) [2020-07-28 17:53:33,815 INFO L264 CegarLoopResult]: At program point L51(lines 11 52) the Hoare annotation is: (and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_round_float_#res|) (= currentRoundingMode roundNearestTiesToEven)) [2020-07-28 17:53:33,821 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:33,822 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:33,822 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:33,822 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:53:33,822 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:33,822 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:33,822 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:53:33,823 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:33,823 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:33,823 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:33,823 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:33,823 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:53:33,824 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:53:33,824 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:53:33,824 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:53:33,824 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:53:33,824 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:53:33,828 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:33,829 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:33,829 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-28 17:53:33,829 WARN L170 areAnnotationChecker]: L57-3 has no Hoare annotation [2020-07-28 17:53:33,829 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:53:33,829 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:53:33,829 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:53:33,829 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-28 17:53:33,830 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-28 17:53:33,830 WARN L170 areAnnotationChecker]: L57-3 has no Hoare annotation [2020-07-28 17:53:33,830 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 17:53:33,830 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 17:53:33,830 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 17:53:33,831 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-28 17:53:33,831 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-28 17:53:33,831 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:33,831 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:33,831 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:53:33,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,850 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,850 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,850 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,850 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,851 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,865 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,865 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,875 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:33 BoogieIcfgContainer [2020-07-28 17:53:33,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:33,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:33,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:33,890 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:33,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:28" (3/4) ... [2020-07-28 17:53:33,897 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:53:33,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-07-28 17:53:33,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-07-28 17:53:33,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:53:33,936 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && ~fp.add~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())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-07-28 17:53:33,936 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && x == ~fp.add~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()))) && ~fp.add~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())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-07-28 17:53:33,936 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~bvadd64(~bvand32(2147483647bv32, ix), 2155872256bv32) == 0bv32 && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && x == ~fp.add~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()))) && ~fp.add~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())) == \result) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-07-28 17:53:33,963 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:53:33,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:33,966 INFO L168 Benchmark]: Toolchain (without parser) took 6840.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:33,966 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:33,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -121.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:33,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:33,968 INFO L168 Benchmark]: Boogie Preprocessor took 39.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:33,968 INFO L168 Benchmark]: RCFGBuilder took 510.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:33,969 INFO L168 Benchmark]: TraceAbstraction took 5740.45 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -106.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:33,969 INFO L168 Benchmark]: Witness Printer took 73.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:33,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 400.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -121.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 510.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5740.45 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -106.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 73.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 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 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 * 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 - 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: 78]: 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: 55]: Loop Invariant [2020-07-28 17:53:33,983 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,986 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,986 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,986 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~bvadd64(~bvand32(2147483647bv32, ix), 2155872256bv32) == 0bv32 && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && x == ~fp.add~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()))) && ~fp.add~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())) == \result) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 57]: Loop Invariant [2020-07-28 17:53:33,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,992 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,994 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && x == ~fp.add~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()))) && ~fp.add~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())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2020-07-28 17:53:33,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && ~fp.add~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())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant [2020-07-28 17:53:33,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:33,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:33,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:34,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:34,000 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:34,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:34,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:34,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 61 SDslu, 137 SDs, 0 SdLazy, 80 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 155 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 82 ConstructedInterpolants, 12 QuantifiedInterpolants, 6769 SizeOfPredicates, 19 NumberOfNonLiveVariables, 123 ConjunctsInSsa, 24 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...