./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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-a4ecdab [2020-11-29 19:33:30,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:33:30,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:33:30,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:33:30,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:33:30,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:33:30,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:33:30,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:33:30,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:33:30,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:33:30,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:33:30,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:33:30,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:33:30,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:33:30,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:33:30,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:33:30,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:33:30,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:33:30,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:33:30,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:33:30,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:33:30,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:33:30,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:33:30,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:33:30,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:33:30,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:33:30,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:33:30,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:33:30,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:33:30,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:33:30,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:33:30,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:33:30,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:33:30,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:33:30,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:33:30,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:33:30,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:33:30,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:33:30,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:33:30,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:33:30,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:33:30,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:33:30,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:33:30,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:33:30,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:33:30,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:33:30,273 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:33:30,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:33:30,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:33:30,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:33:30,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:33:30,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:33:30,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:33:30,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:33:30,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:33:30,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:33:30,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:33:30,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:33:30,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:33:30,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:33:30,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:33:30,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:33:30,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:33:30,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:33:30,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:33:30,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:33:30,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:33:30,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:33:30,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:33:30,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:33:30,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:33:30,279 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_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-11-29 19:33:30,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:33:30,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:33:30,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:33:30,632 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:33:30,633 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:33:30,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-29 19:33:30,723 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/d5860c467/22365039b38d419395d3da8f639376b4/FLAGc04c242f9 [2020-11-29 19:33:31,345 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:33:31,346 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-29 19:33:31,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/d5860c467/22365039b38d419395d3da8f639376b4/FLAGc04c242f9 [2020-11-29 19:33:31,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/d5860c467/22365039b38d419395d3da8f639376b4 [2020-11-29 19:33:31,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:33:31,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:33:31,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:31,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:33:31,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:33:31,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:31" (1/1) ... [2020-11-29 19:33:31,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5a08d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:31, skipping insertion in model container [2020-11-29 19:33:31,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:31" (1/1) ... [2020-11-29 19:33:31,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:33:31,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:33:32,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:32,031 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:33:32,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:32,100 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:33:32,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32 WrapperNode [2020-11-29 19:33:32,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:32,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:32,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:33:32,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:33:32,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:32,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:33:32,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:33:32,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:33:32,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:33:32,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:33:32,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:33:32,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:33:32,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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 [2020-11-29 19:33:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:33:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:33:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 19:33:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:33:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 19:33:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:33:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:33:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:33:33,089 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:33:33,089 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-29 19:33:33,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:33 BoogieIcfgContainer [2020-11-29 19:33:33,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:33:33,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:33:33,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:33:33,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:33:33,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:33:31" (1/3) ... [2020-11-29 19:33:33,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76262fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:33, skipping insertion in model container [2020-11-29 19:33:33,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32" (2/3) ... [2020-11-29 19:33:33,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76262fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:33, skipping insertion in model container [2020-11-29 19:33:33,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:33" (3/3) ... [2020-11-29 19:33:33,107 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-11-29 19:33:33,121 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:33:33,130 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:33:33,165 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:33:33,197 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:33:33,198 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:33:33,198 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:33:33,199 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:33:33,199 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:33:33,199 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:33:33,199 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:33:33,200 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:33:33,216 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-29 19:33:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:33:33,223 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:33,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:33,225 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:33,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:33,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-11-29 19:33:33,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:33,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655205996] [2020-11-29 19:33:33,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:33:33,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655205996] [2020-11-29 19:33:33,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:33,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:33:33,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914843615] [2020-11-29 19:33:33,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:33:33,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:33:33,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:33:33,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:33:33,452 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-11-29 19:33:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:33,478 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-11-29 19:33:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:33:33,480 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:33:33,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:33:33,493 INFO L225 Difference]: With dead ends: 87 [2020-11-29 19:33:33,493 INFO L226 Difference]: Without dead ends: 41 [2020-11-29 19:33:33,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:33:33,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-29 19:33:33,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-29 19:33:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 19:33:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-11-29 19:33:33,543 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-11-29 19:33:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:33:33,544 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-11-29 19:33:33,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:33:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-29 19:33:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:33:33,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:33,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:33,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:33:33,547 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-11-29 19:33:33,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:33,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402064657] [2020-11-29 19:33:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:33,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:33,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:33,725 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:33,725 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:33:33,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:33:33,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:33:33 BoogieIcfgContainer [2020-11-29 19:33:33,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:33:33,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:33:33,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:33:33,779 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:33:33,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:33" (3/4) ... [2020-11-29 19:33:33,783 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:33:33,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:33:33,787 INFO L168 Benchmark]: Toolchain (without parser) took 2100.34 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 77.0 MB in the beginning and 76.6 MB in the end (delta: 402.8 kB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:33,788 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory was 63.5 MB in the beginning and 63.5 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:33,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.08 ms. Allocated memory is still 104.9 MB. Free memory was 77.0 MB in the beginning and 78.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:33,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.38 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 75.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:33,791 INFO L168 Benchmark]: Boogie Preprocessor took 48.77 ms. Allocated memory is still 104.9 MB. Free memory was 75.9 MB in the beginning and 73.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:33,792 INFO L168 Benchmark]: RCFGBuilder took 874.81 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 73.9 MB in the beginning and 102.2 MB in the end (delta: -28.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:33,793 INFO L168 Benchmark]: TraceAbstraction took 680.27 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 77.1 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:33,794 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 125.8 MB. Free memory was 77.1 MB in the beginning and 76.6 MB in the end (delta: 534.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:33,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory was 63.5 MB in the beginning and 63.5 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 415.08 ms. Allocated memory is still 104.9 MB. Free memory was 77.0 MB in the beginning and 78.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.38 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 75.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.77 ms. Allocated memory is still 104.9 MB. Free memory was 75.9 MB in the beginning and 73.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 874.81 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 73.9 MB in the beginning and 102.2 MB in the end (delta: -28.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 680.27 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 77.1 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.11 ms. Allocated memory is still 125.8 MB. Free memory was 77.1 MB in the beginning and 76.6 MB in the end (delta: 534.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, 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, 0.0s 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-a4ecdab [2020-11-29 19:33:36,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:33:36,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:33:36,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-29 19:33:36,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:33:36,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:33:36,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:33:36,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:33:36,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:33:36,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:33:36,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:33:36,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:33:36,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:33:36,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:33:36,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:33:36,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:33:36,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-29 19:33:36,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:33:36,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:33:36,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:33:36,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:33:36,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:33:36,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:33:36,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:33:36,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:33:36,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:33:36,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:33:36,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:33:36,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:33:36,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:33:36,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:33:36,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:33:36,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:33:36,861 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:33:36,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:33:36,861 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:33:36,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:33:36,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:33:36,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:33:36,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:33:36,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:33:36,863 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:33:36,863 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:33:36,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:33:36,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:33:36,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:33:36,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:33:36,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:33:36,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:33:36,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:33:36,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:33:36,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:33:36,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:33:36,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:33:36,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:33:36,868 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:33:36,868 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:33:36,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:33:36,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:33:36,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:33:36,869 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_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-11-29 19:33:37,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:33:37,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:33:37,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:33:37,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:33:37,424 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:33:37,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-29 19:33:37,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/e6fd9068c/72bfdc87df9347699769ecdaa04f90ec/FLAG684dad8bc [2020-11-29 19:33:38,162 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:33:38,163 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-29 19:33:38,182 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/e6fd9068c/72bfdc87df9347699769ecdaa04f90ec/FLAG684dad8bc [2020-11-29 19:33:38,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/data/e6fd9068c/72bfdc87df9347699769ecdaa04f90ec [2020-11-29 19:33:38,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:33:38,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:33:38,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:38,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:33:38,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:33:38,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:38,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6144fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38, skipping insertion in model container [2020-11-29 19:33:38,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:38,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:33:38,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:33:38,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:38,903 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:33:38,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:38,984 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:33:38,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38 WrapperNode [2020-11-29 19:33:38,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:38,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:38,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:33:38,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:33:38,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:39,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:33:39,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:33:39,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:33:39,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:33:39,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:33:39,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:33:39,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:33:39,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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 [2020-11-29 19:33:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:33:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:33:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 19:33:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 19:33:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:33:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:33:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 19:33:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 19:33:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:33:57,034 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:33:57,035 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-29 19:33:57,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:57 BoogieIcfgContainer [2020-11-29 19:33:57,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:33:57,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:33:57,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:33:57,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:33:57,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:33:38" (1/3) ... [2020-11-29 19:33:57,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cfcd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:57, skipping insertion in model container [2020-11-29 19:33:57,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (2/3) ... [2020-11-29 19:33:57,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cfcd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:57, skipping insertion in model container [2020-11-29 19:33:57,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:57" (3/3) ... [2020-11-29 19:33:57,047 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-11-29 19:33:57,060 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:33:57,066 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:33:57,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:33:57,110 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:33:57,110 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:33:57,110 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:33:57,110 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:33:57,110 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:33:57,111 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:33:57,111 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:33:57,111 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:33:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-29 19:33:57,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:33:57,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:57,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:57,131 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:57,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:57,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-11-29 19:33:57,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:33:57,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917632293] [2020-11-29 19:33:57,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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 [2020-11-29 19:33:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:58,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 19:33:58,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:33:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:33:58,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:33:58,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:33:58,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917632293] [2020-11-29 19:33:58,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:58,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 19:33:58,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030322986] [2020-11-29 19:33:58,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:33:58,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:33:58,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:33:58,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:33:58,283 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-11-29 19:33:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:58,305 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-11-29 19:33:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:33:58,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:33:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:33:58,316 INFO L225 Difference]: With dead ends: 87 [2020-11-29 19:33:58,317 INFO L226 Difference]: Without dead ends: 41 [2020-11-29 19:33:58,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:33:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-29 19:33:58,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-29 19:33:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 19:33:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-11-29 19:33:58,361 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-11-29 19:33:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:33:58,362 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-11-29 19:33:58,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:33:58,362 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-29 19:33:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:33:58,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:58,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:58,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:33:58,591 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:58,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:58,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-11-29 19:33:58,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:33:58,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758935761] [2020-11-29 19:33:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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 [2020-11-29 19:33:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:59,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:33:59,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:33:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:33:59,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:33:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:33:59,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758935761] [2020-11-29 19:33:59,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:59,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 19:33:59,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896278445] [2020-11-29 19:33:59,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:33:59,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:33:59,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:33:59,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:33:59,721 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2020-11-29 19:34:00,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:34:00,252 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-11-29 19:34:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:34:00,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-29 19:34:00,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:34:00,254 INFO L225 Difference]: With dead ends: 46 [2020-11-29 19:34:00,254 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 19:34:00,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:34:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 19:34:00,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 19:34:00,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 19:34:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-11-29 19:34:00,259 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-11-29 19:34:00,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:34:00,260 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-11-29 19:34:00,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:34:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-11-29 19:34:00,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:34:00,261 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:34:00,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:34:00,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 19:34:00,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:34:00,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:34:00,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-11-29 19:34:00,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:34:00,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905640764] [2020-11-29 19:34:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/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 [2020-11-29 19:34:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:34:01,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 19:34:01,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:34:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:34:01,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:34:07,491 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-29 19:34:07,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:34:07,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905640764] [2020-11-29 19:34:07,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:34:07,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 19:34:07,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419690348] [2020-11-29 19:34:07,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 19:34:07,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:34:07,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 19:34:07,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:34:07,522 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 10 states. [2020-11-29 19:34:08,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:34:08,280 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-29 19:34:08,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:34:08,280 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-29 19:34:08,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:34:08,281 INFO L225 Difference]: With dead ends: 12 [2020-11-29 19:34:08,281 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:34:08,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-29 19:34:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:34:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:34:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:34:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:34:08,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-29 19:34:08,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:34:08,283 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:34:08,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 19:34:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:34:08,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:34:08,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 19:34:08,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:34:08,698 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-11-29 19:34:08,891 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-11-29 19:34:08,894 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-11-29 19:34:08,894 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-11-29 19:34:08,894 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-11-29 19:34:08,894 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-11-29 19:34:08,895 INFO L270 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) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (= 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)))) [2020-11-29 19:34:08,895 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:34:08,895 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 19:34:08,895 INFO L274 CegarLoopResult]: For program point L160(lines 160 163) no Hoare annotation was computed. [2020-11-29 19:34:08,896 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-11-29 19:34:08,896 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:34:08,896 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-11-29 19:34:08,896 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:34:08,896 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-11-29 19:34:08,896 INFO L270 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)))) [2020-11-29 19:34:08,896 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-11-29 19:34:08,897 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-29 19:34:08,897 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-29 19:34:08,897 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-29 19:34:08,897 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-11-29 19:34:08,897 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-11-29 19:34:08,897 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-11-29 19:34:08,897 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-11-29 19:34:08,898 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-11-29 19:34:08,898 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-11-29 19:34:08,898 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-11-29 19:34:08,898 INFO L270 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) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (= (_ 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)))) [2020-11-29 19:34:08,898 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:34:08,899 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:34:08,899 INFO L277 CegarLoopResult]: At program point L165(lines 149 166) the Hoare annotation is: true [2020-11-29 19:34:08,899 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-29 19:34:08,899 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:34:08,899 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-11-29 19:34:08,899 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-11-29 19:34:08,900 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-11-29 19:34:08,900 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-11-29 19:34:08,900 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-11-29 19:34:08,900 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-11-29 19:34:08,900 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-29 19:34:08,900 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-11-29 19:34:08,900 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-11-29 19:34:08,901 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-29 19:34:08,901 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-11-29 19:34:08,901 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-29 19:34:08,901 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-11-29 19:34:08,901 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-29 19:34:08,917 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,919 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,919 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,919 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,929 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,929 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,929 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,929 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,930 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,930 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,931 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,931 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,950 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,974 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:08,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:08,976 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,976 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,976 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,977 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:08,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:34:08 BoogieIcfgContainer [2020-11-29 19:34:08,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:34:08,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:34:08,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:34:08,980 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:34:08,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:57" (3/4) ... [2020-11-29 19:34:08,984 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:34:09,012 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-29 19:34:09,012 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-29 19:34:09,013 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:34:09,014 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:34:09,048 WARN L221 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) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 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()) [2020-11-29 19:34:09,050 WARN L221 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) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 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()) [2020-11-29 19:34:09,151 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e2bd7ff6-2ec0-4c46-977d-6d52aa95ba28/bin/uautomizer/witness.graphml [2020-11-29 19:34:09,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:34:09,153 INFO L168 Benchmark]: Toolchain (without parser) took 30638.59 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 27.3 MB in the beginning and 39.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:34:09,154 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.2 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:34:09,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.95 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 24.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:34:09,155 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.25 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 32.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:34:09,156 INFO L168 Benchmark]: Boogie Preprocessor took 58.88 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 30.3 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:34:09,157 INFO L168 Benchmark]: RCFGBuilder took 17873.32 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 30.3 MB in the beginning and 47.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:34:09,157 INFO L168 Benchmark]: TraceAbstraction took 11940.41 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 45.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:34:09,158 INFO L168 Benchmark]: Witness Printer took 171.41 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 39.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:34:09,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.2 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 465.95 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 24.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.25 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 32.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.88 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 30.3 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 17873.32 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 30.3 MB in the beginning and 47.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11940.41 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 45.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * Witness Printer took 171.41 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 39.4 MB in the end (delta: 5.9 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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 [2020-11-29 19:34:09,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,188 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) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 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 [2020-11-29 19:34:09,189 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,197 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 [2020-11-29 19:34:09,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,203 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,203 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,203 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,204 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:34:09,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:34:09,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:34:09,207 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) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 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: 11.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 29 SDslu, 20 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 6.6s 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, 142 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 6.5s 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...