./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 941f84fd12bbb635098ac1c65472cdf78fad6ad9 ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 941f84fd12bbb635098ac1c65472cdf78fad6ad9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:35:10,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:35:10,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:35:10,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:35:10,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:35:10,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:35:10,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:35:10,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:35:10,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:35:10,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:35:10,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:35:10,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:35:10,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:35:10,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:35:10,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:35:10,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:35:10,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:35:10,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:35:10,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:35:10,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:35:10,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:35:10,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:35:10,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:35:10,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:35:10,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:35:10,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:35:10,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:35:10,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:35:10,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:35:10,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:35:10,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:35:10,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:35:10,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:35:10,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:35:10,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:35:10,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:35:10,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:35:10,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:35:10,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:35:10,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:35:10,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:35:10,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:35:10,340 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:35:10,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:35:10,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:35:10,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:35:10,346 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:35:10,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:35:10,347 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:35:10,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:35:10,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:35:10,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:35:10,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:35:10,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:35:10,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:35:10,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:35:10,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:35:10,350 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:35:10,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:35:10,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:35:10,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:35:10,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:35:10,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:35:10,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:35:10,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:35:10,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:35:10,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:35:10,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:35:10,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:35:10,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:35:10,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:35:10,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-12-01 15:35:10,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:35:10,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:35:10,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:35:10,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:35:10,721 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:35:10,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-01 15:35:10,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/d4f2b2d03/dc5329456b9d41c58b66515188f19e5c/FLAGd744d0df4 [2020-12-01 15:35:11,550 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:35:11,551 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-01 15:35:11,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/d4f2b2d03/dc5329456b9d41c58b66515188f19e5c/FLAGd744d0df4 [2020-12-01 15:35:11,885 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/d4f2b2d03/dc5329456b9d41c58b66515188f19e5c [2020-12-01 15:35:11,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:35:11,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:35:11,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:35:11,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:35:11,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:35:11,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:35:11" (1/1) ... [2020-12-01 15:35:11,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eba7d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:11, skipping insertion in model container [2020-12-01 15:35:11,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:35:11" (1/1) ... [2020-12-01 15:35:11,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:35:11,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:35:12,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:35:12,249 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:35:12,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:35:12,347 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:35:12,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12 WrapperNode [2020-12-01 15:35:12,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:35:12,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:35:12,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:35:12,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:35:12,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:35:12,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:35:12,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:35:12,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:35:12,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... [2020-12-01 15:35:12,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:35:12,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:35:12,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:35:12,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:35:12,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/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 [2020-12-01 15:35:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:35:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:35:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:35:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:35:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:35:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:35:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:35:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:35:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:35:13,307 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:35:13,315 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 15:35:13,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:13 BoogieIcfgContainer [2020-12-01 15:35:13,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:35:13,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:35:13,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:35:13,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:35:13,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:35:11" (1/3) ... [2020-12-01 15:35:13,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:35:13, skipping insertion in model container [2020-12-01 15:35:13,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:12" (2/3) ... [2020-12-01 15:35:13,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:35:13, skipping insertion in model container [2020-12-01 15:35:13,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:13" (3/3) ... [2020-12-01 15:35:13,359 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-12-01 15:35:13,374 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:35:13,377 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:35:13,388 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:35:13,429 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:35:13,430 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:35:13,430 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:35:13,430 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:35:13,431 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:35:13,431 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:35:13,431 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:35:13,431 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:35:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-01 15:35:13,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:35:13,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:35:13,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:35:13,463 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:35:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:35:13,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-12-01 15:35:13,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:35:13,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537226105] [2020-12-01 15:35:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:35:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:35:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:35:13,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537226105] [2020-12-01 15:35:13,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:35:13,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:35:13,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111674776] [2020-12-01 15:35:13,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:35:13,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:35:13,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:35:13,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:35:13,803 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-01 15:35:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:35:13,842 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-12-01 15:35:13,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:35:13,844 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:35:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:35:13,871 INFO L225 Difference]: With dead ends: 87 [2020-12-01 15:35:13,878 INFO L226 Difference]: Without dead ends: 41 [2020-12-01 15:35:13,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:35:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-01 15:35:13,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-01 15:35:13,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-01 15:35:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-12-01 15:35:13,933 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-12-01 15:35:13,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:35:13,933 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-12-01 15:35:13,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:35:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-12-01 15:35:13,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:35:13,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:35:13,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:35:13,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:35:13,936 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:35:13,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:35:13,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-12-01 15:35:13,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:35:13,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495714574] [2020-12-01 15:35:13,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:35:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:35:14,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:35:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:35:14,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:35:14,170 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:35:14,171 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:35:14,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:35:14,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:35:14 BoogieIcfgContainer [2020-12-01 15:35:14,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:35:14,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:35:14,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:35:14,242 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:35:14,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:13" (3/4) ... [2020-12-01 15:35:14,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:35:14,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:35:14,258 INFO L168 Benchmark]: Toolchain (without parser) took 2367.18 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 64.3 MB in the beginning and 71.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:35:14,259 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 96.5 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:35:14,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.31 ms. Allocated memory is still 96.5 MB. Free memory was 64.1 MB in the beginning and 70.6 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:35:14,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.36 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 68.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:35:14,262 INFO L168 Benchmark]: Boogie Preprocessor took 47.87 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 66.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:35:14,263 INFO L168 Benchmark]: RCFGBuilder took 862.12 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 66.5 MB in the beginning and 96.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:35:14,264 INFO L168 Benchmark]: TraceAbstraction took 892.16 ms. Allocated memory is still 119.5 MB. Free memory was 96.3 MB in the beginning and 71.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:35:14,265 INFO L168 Benchmark]: Witness Printer took 14.06 ms. Allocated memory is still 119.5 MB. Free memory was 71.7 MB in the beginning and 71.7 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:35:14,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 96.5 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 456.31 ms. Allocated memory is still 96.5 MB. Free memory was 64.1 MB in the beginning and 70.6 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.36 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 68.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.87 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 66.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 862.12 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 66.5 MB in the beginning and 96.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 892.16 ms. Allocated memory is still 119.5 MB. Free memory was 96.3 MB in the beginning and 71.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 14.06 ms. Allocated memory is still 119.5 MB. Free memory was 71.7 MB in the beginning and 71.7 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 118. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L156] float x = -1.0f / 0.0f; [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L157] float res = __ieee754_log10f(x); [L147] return x != x; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L160] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0970b.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:35:17,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:35:17,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:35:17,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:35:17,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:35:17,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:35:17,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:35:17,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:35:17,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:35:17,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:35:17,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:35:17,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:35:17,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:35:17,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:35:17,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:35:17,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:35:17,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:35:17,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:35:17,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:35:17,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:35:17,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:35:17,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:35:17,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:35:17,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:35:17,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:35:17,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:35:17,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:35:17,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:35:17,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:35:17,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:35:17,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:35:17,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:35:17,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:35:17,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:35:17,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:35:17,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:35:17,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:35:17,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:35:17,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:35:17,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:35:17,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:35:17,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:35:17,439 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:35:17,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:35:17,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:35:17,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:35:17,447 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:35:17,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:35:17,448 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:35:17,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:35:17,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:35:17,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:35:17,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:35:17,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:35:17,451 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:35:17,451 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:35:17,452 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:35:17,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:35:17,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:35:17,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:35:17,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:35:17,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:35:17,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:35:17,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:35:17,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:35:17,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:35:17,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:35:17,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:35:17,455 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:35:17,455 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:35:17,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:35:17,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:35:17,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:35:17,457 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-12-01 15:35:17,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:35:18,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:35:18,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:35:18,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:35:18,028 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:35:18,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-01 15:35:18,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/3f5537303/4c210d6d1c754b40be293f703001fd63/FLAG667460510 [2020-12-01 15:35:18,856 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:35:18,860 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-01 15:35:18,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/3f5537303/4c210d6d1c754b40be293f703001fd63/FLAG667460510 [2020-12-01 15:35:19,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/data/3f5537303/4c210d6d1c754b40be293f703001fd63 [2020-12-01 15:35:19,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:35:19,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:35:19,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:35:19,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:35:19,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:35:19,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0cc3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19, skipping insertion in model container [2020-12-01 15:35:19,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:35:19,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:35:19,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:35:19,545 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:35:19,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:35:19,656 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:35:19,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19 WrapperNode [2020-12-01 15:35:19,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:35:19,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:35:19,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:35:19,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:35:19,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:35:19,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:35:19,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:35:19,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:35:19,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... [2020-12-01 15:35:19,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:35:19,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:35:19,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:35:19,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:35:19,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/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 [2020-12-01 15:35:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:35:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:35:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-01 15:35:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:35:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:35:19,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:35:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-01 15:35:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:35:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:35:48,716 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:35:48,716 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 15:35:48,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:48 BoogieIcfgContainer [2020-12-01 15:35:48,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:35:48,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:35:48,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:35:48,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:35:48,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:35:19" (1/3) ... [2020-12-01 15:35:48,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aad4a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:35:48, skipping insertion in model container [2020-12-01 15:35:48,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:19" (2/3) ... [2020-12-01 15:35:48,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aad4a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:35:48, skipping insertion in model container [2020-12-01 15:35:48,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:48" (3/3) ... [2020-12-01 15:35:48,729 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-12-01 15:35:48,745 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:35:48,750 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:35:48,763 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:35:48,789 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:35:48,790 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:35:48,790 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:35:48,790 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:35:48,790 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:35:48,791 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:35:48,791 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:35:48,791 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:35:48,805 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-01 15:35:48,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:35:48,810 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:35:48,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:35:48,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:35:48,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:35:48,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-12-01 15:35:48,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:35:48,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974018453] [2020-12-01 15:35:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/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 [2020-12-01 15:35:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:35:49,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:35:49,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:35:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:35:49,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:35:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:35:49,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974018453] [2020-12-01 15:35:49,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:35:49,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:35:49,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171544915] [2020-12-01 15:35:49,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:35:49,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:35:49,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:35:49,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:35:49,748 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-01 15:35:49,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:35:49,772 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-12-01 15:35:49,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:35:49,773 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:35:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:35:49,784 INFO L225 Difference]: With dead ends: 87 [2020-12-01 15:35:49,784 INFO L226 Difference]: Without dead ends: 41 [2020-12-01 15:35:49,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:35:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-01 15:35:49,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-01 15:35:49,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-01 15:35:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-12-01 15:35:49,827 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-12-01 15:35:49,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:35:49,828 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-12-01 15:35:49,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:35:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-12-01 15:35:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:35:49,829 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:35:49,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:35:50,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:35:50,031 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:35:50,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:35:50,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-12-01 15:35:50,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:35:50,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73836302] [2020-12-01 15:35:50,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/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 [2020-12-01 15:35:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:35:50,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:35:50,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:35:51,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:35:51,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:35:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:35:51,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73836302] [2020-12-01 15:35:51,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:35:51,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-01 15:35:51,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432399733] [2020-12-01 15:35:51,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:35:51,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:35:51,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:35:51,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:35:51,270 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2020-12-01 15:35:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:35:53,552 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-12-01 15:35:53,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:35:53,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-01 15:35:53,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:35:53,554 INFO L225 Difference]: With dead ends: 46 [2020-12-01 15:35:53,554 INFO L226 Difference]: Without dead ends: 12 [2020-12-01 15:35:53,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:35:53,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-01 15:35:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-01 15:35:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 15:35:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-12-01 15:35:53,559 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-12-01 15:35:53,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:35:53,560 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-12-01 15:35:53,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:35:53,560 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-01 15:35:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:35:53,561 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:35:53,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:35:53,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:35:53,762 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:35:53,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:35:53,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-12-01 15:35:53,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:35:53,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962455844] [2020-12-01 15:35:53,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/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 [2020-12-01 15:35:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:35:54,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:35:54,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:35:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:35:55,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:35:57,284 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_log10f_~x c_ULTIMATE.start___ieee754_log10f_~x) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) is different from false [2020-12-01 15:35:59,325 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_log10f_~x c_ULTIMATE.start___ieee754_log10f_~x) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) is different from true [2020-12-01 15:35:59,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:35:59,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962455844] [2020-12-01 15:35:59,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:35:59,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-12-01 15:35:59,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069016108] [2020-12-01 15:35:59,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:35:59,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:35:59,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:35:59,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=54, Unknown=2, NotChecked=14, Total=90 [2020-12-01 15:35:59,362 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 10 states. [2020-12-01 15:36:00,668 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 15:36:00,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:36:00,669 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-12-01 15:36:00,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:36:00,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-12-01 15:36:00,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:36:00,670 INFO L225 Difference]: With dead ends: 12 [2020-12-01 15:36:00,670 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:36:00,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=44, Invalid=90, Unknown=2, NotChecked=20, Total=156 [2020-12-01 15:36:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:36:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:36:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:36:00,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:36:00,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-01 15:36:00,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:36:00,673 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:36:00,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:36:00,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:36:00,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:36:00,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:36:00,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:36:01,229 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2020-12-01 15:36:01,359 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-01 15:36:01,361 INFO L262 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-12-01 15:36:01,361 INFO L262 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-12-01 15:36:01,362 INFO L262 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-12-01 15:36:01,362 INFO L262 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-12-01 15:36:01,362 INFO L258 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-01 15:36:01,362 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:36:01,363 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:36:01,363 INFO L262 CegarLoopResult]: For program point L160(lines 160 163) no Hoare annotation was computed. [2020-12-01 15:36:01,363 INFO L262 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-12-01 15:36:01,363 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:36:01,363 INFO L258 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-12-01 15:36:01,363 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:36:01,364 INFO L262 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-12-01 15:36:01,364 INFO L258 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-01 15:36:01,364 INFO L262 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-12-01 15:36:01,364 INFO L262 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-12-01 15:36:01,364 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-12-01 15:36:01,364 INFO L262 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-12-01 15:36:01,364 INFO L262 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-12-01 15:36:01,365 INFO L258 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-12-01 15:36:01,365 INFO L262 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-12-01 15:36:01,365 INFO L258 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-12-01 15:36:01,365 INFO L262 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-12-01 15:36:01,365 INFO L262 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-12-01 15:36:01,365 INFO L262 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-12-01 15:36:01,366 INFO L258 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-01 15:36:01,366 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:36:01,366 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:36:01,366 INFO L265 CegarLoopResult]: At program point L165(lines 149 166) the Hoare annotation is: true [2020-12-01 15:36:01,366 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-12-01 15:36:01,367 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:36:01,367 INFO L262 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-12-01 15:36:01,367 INFO L262 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-12-01 15:36:01,368 INFO L262 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-12-01 15:36:01,368 INFO L262 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-12-01 15:36:01,369 INFO L258 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-12-01 15:36:01,369 INFO L262 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-12-01 15:36:01,369 INFO L262 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-12-01 15:36:01,369 INFO L258 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-12-01 15:36:01,369 INFO L262 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-12-01 15:36:01,369 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-12-01 15:36:01,369 INFO L258 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-12-01 15:36:01,370 INFO L262 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-12-01 15:36:01,370 INFO L262 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-12-01 15:36:01,370 INFO L262 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-12-01 15:36:01,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,410 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,417 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,418 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,418 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,418 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,418 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,421 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,421 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,422 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,422 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:36:01 BoogieIcfgContainer [2020-12-01 15:36:01,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:36:01,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:36:01,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:36:01,441 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:36:01,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:48" (3/4) ... [2020-12-01 15:36:01,446 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:36:01,466 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-12-01 15:36:01,467 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 15:36:01,467 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:36:01,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:36:01,504 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-01 15:36:01,505 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-01 15:36:01,596 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fc2a7691-8689-45b6-8425-9d6ad1ebc792/bin/uautomizer/witness.graphml [2020-12-01 15:36:01,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:36:01,599 INFO L168 Benchmark]: Toolchain (without parser) took 42423.80 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 57.4 MB in the beginning and 49.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:01,600 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 57.2 MB in the end (delta: 53.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:36:01,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.11 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 55.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:01,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.14 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 53.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:01,603 INFO L168 Benchmark]: Boogie Preprocessor took 69.41 ms. Allocated memory is still 75.5 MB. Free memory was 53.1 MB in the beginning and 50.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:01,603 INFO L168 Benchmark]: RCFGBuilder took 28877.28 ms. Allocated memory is still 75.5 MB. Free memory was 50.7 MB in the beginning and 42.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:01,604 INFO L168 Benchmark]: TraceAbstraction took 12719.46 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 42.2 MB in the beginning and 54.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:01,605 INFO L168 Benchmark]: Witness Printer took 156.24 ms. Allocated memory is still 98.6 MB. Free memory was 54.7 MB in the beginning and 49.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:01,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 57.2 MB in the end (delta: 53.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.11 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 55.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.14 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 53.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.41 ms. Allocated memory is still 75.5 MB. Free memory was 53.1 MB in the beginning and 50.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 28877.28 ms. Allocated memory is still 75.5 MB. Free memory was 50.7 MB in the beginning and 42.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12719.46 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 42.2 MB in the beginning and 54.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Witness Printer took 156.24 ms. Allocated memory is still 98.6 MB. Free memory was 54.7 MB in the beginning and 49.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 107]: Loop Invariant [2020-12-01 15:36:01,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,638 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,641 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,641 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,641 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,645 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,645 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,645 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,646 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,646 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,646 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2020-12-01 15:36:01,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,648 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,648 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-12-01 15:36:01,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:36:01,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:36:01,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 19 SDslu, 36 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 110 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 4134 SizeOfPredicates, 17 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...