./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88d3648b8ee059de01de6f913fc316c297763bb6 .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88d3648b8ee059de01de6f913fc316c297763bb6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:20,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:20,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:20,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:20,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:20,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:20,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:20,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:20,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:20,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:20,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:20,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:20,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:20,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:20,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:20,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:20,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:20,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:20,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:20,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:20,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:20,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:20,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:20,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:20,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:20,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:20,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:20,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:20,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:20,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:20,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:20,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:20,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:20,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:20,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:20,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:20,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:20,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:20,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:20,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:20,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:20,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:20,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:20,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:20,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:20,292 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:20,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:20,292 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:20,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:20,293 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:20,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:20,300 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:20,301 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:20,301 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:20,301 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:20,302 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:20,302 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:20,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:20,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:20,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:20,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:20,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:20,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:20,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:20,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:20,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:20,305 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:20,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:20,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:20,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:20,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:20,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:20,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:20,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:20,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:20,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:20,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:20,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:20,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:20,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:20,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:20,310 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2021-10-11 02:25:20,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:20,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:20,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:20,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:20,636 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:20,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-11 02:25:20,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/9cec44ad1/60f8d7418f6746358ac3a12812fe4c15/FLAG822f5a230 [2021-10-11 02:25:21,262 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:21,262 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-11 02:25:21,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/9cec44ad1/60f8d7418f6746358ac3a12812fe4c15/FLAG822f5a230 [2021-10-11 02:25:21,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/9cec44ad1/60f8d7418f6746358ac3a12812fe4c15 [2021-10-11 02:25:21,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:21,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:21,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:21,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:21,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:21,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:21" (1/1) ... [2021-10-11 02:25:21,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ea0d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:21, skipping insertion in model container [2021-10-11 02:25:21,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:21" (1/1) ... [2021-10-11 02:25:21,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:21,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:21,950 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-11 02:25:21,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:21,969 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:22,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-11 02:25:22,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:22,065 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:22,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22 WrapperNode [2021-10-11 02:25:22,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:22,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:22,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:22,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:22,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:22,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:22,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:22,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:22,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... [2021-10-11 02:25:22,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:22,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:22,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:22,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:22,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:25:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:25:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:25:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:25:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:25:22,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:22,970 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-11 02:25:22,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:22 BoogieIcfgContainer [2021-10-11 02:25:22,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:22,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:22,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:22,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:22,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:21" (1/3) ... [2021-10-11 02:25:22,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637a29cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:22, skipping insertion in model container [2021-10-11 02:25:22,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:22" (2/3) ... [2021-10-11 02:25:22,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637a29cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:22, skipping insertion in model container [2021-10-11 02:25:22,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:22" (3/3) ... [2021-10-11 02:25:22,981 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2021-10-11 02:25:22,995 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:22,999 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:23,010 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:23,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:23,035 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:23,035 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:23,035 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:23,035 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:23,036 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:23,036 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:23,036 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2021-10-11 02:25:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:25:23,055 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:23,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:23,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:23,061 INFO L82 PathProgramCache]: Analyzing trace with hash -2140931982, now seen corresponding path program 1 times [2021-10-11 02:25:23,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:23,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972124869] [2021-10-11 02:25:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:23,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972124869] [2021-10-11 02:25:23,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:23,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:23,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755395288] [2021-10-11 02:25:23,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:25:23,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:23,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:25:23,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:23,231 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2021-10-11 02:25:23,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:23,250 INFO L93 Difference]: Finished difference Result 78 states and 125 transitions. [2021-10-11 02:25:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:25:23,251 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 02:25:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:23,260 INFO L225 Difference]: With dead ends: 78 [2021-10-11 02:25:23,261 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:25:23,263 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 [2021-10-11 02:25:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:25:23,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 02:25:23,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:25:23,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2021-10-11 02:25:23,295 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 9 [2021-10-11 02:25:23,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:23,296 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2021-10-11 02:25:23,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:25:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2021-10-11 02:25:23,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:25:23,296 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:23,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:23,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:23,297 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:23,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:23,302 INFO L82 PathProgramCache]: Analyzing trace with hash 282297977, now seen corresponding path program 1 times [2021-10-11 02:25:23,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:23,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716969990] [2021-10-11 02:25:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:23,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716969990] [2021-10-11 02:25:23,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:23,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:23,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245232655] [2021-10-11 02:25:23,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:23,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:23,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:23,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:23,409 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 3 states. [2021-10-11 02:25:23,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:23,443 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2021-10-11 02:25:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:23,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-10-11 02:25:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:23,449 INFO L225 Difference]: With dead ends: 69 [2021-10-11 02:25:23,449 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:25:23,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:25:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 02:25:23,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:25:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-10-11 02:25:23,464 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 10 [2021-10-11 02:25:23,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:23,464 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-11 02:25:23,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-10-11 02:25:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:25:23,466 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:23,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:23,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:25:23,469 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:23,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1771759463, now seen corresponding path program 1 times [2021-10-11 02:25:23,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:23,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138436492] [2021-10-11 02:25:23,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:23,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:23,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:23,689 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:25:23,689 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:25:23,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:25:23,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:23 BoogieIcfgContainer [2021-10-11 02:25:23,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:23,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:23,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:23,732 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:23,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:22" (3/4) ... [2021-10-11 02:25:23,735 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:25:23,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:23,737 INFO L168 Benchmark]: Toolchain (without parser) took 2104.66 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 79.1 MB in the beginning and 101.1 MB in the end (delta: -22.0 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:23,738 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 64.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:23,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.67 ms. Allocated memory is still 111.1 MB. Free memory was 78.9 MB in the beginning and 82.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:23,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.45 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 80.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:23,740 INFO L168 Benchmark]: Boogie Preprocessor took 38.98 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 78.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:23,741 INFO L168 Benchmark]: RCFGBuilder took 804.59 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 78.1 MB in the beginning and 93.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:23,741 INFO L168 Benchmark]: TraceAbstraction took 757.34 ms. Allocated memory is still 134.2 MB. Free memory was 93.0 MB in the beginning and 101.1 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:23,742 INFO L168 Benchmark]: Witness Printer took 3.85 ms. Allocated memory is still 134.2 MB. Free memory is still 101.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:23,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 64.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 433.67 ms. Allocated memory is still 111.1 MB. Free memory was 78.9 MB in the beginning and 82.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.45 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 80.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.98 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 78.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 804.59 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 78.1 MB in the beginning and 93.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 757.34 ms. Allocated memory is still 134.2 MB. Free memory was 93.0 MB in the beginning and 101.1 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.85 ms. Allocated memory is still 134.2 MB. Free memory is still 101.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 176]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of bitwiseAnd at line 118, overapproximation of someBinaryArithmeticFLOAToperation at line 119. 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; [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) [L151] __int32_t ix; 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] [L153] ieee_float_shape_type gf_u; [L154] gf_u.value = (x) [L155] EXPR gf_u.word [L155] (ix) = gf_u.word [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); [L170] x < 0 && isfinite_float(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] [L170] COND TRUE x < 0 && isfinite_float(x) [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] [L172] float res = __ieee754_log10f(x); [L147] return x != x; [L175] COND TRUE !isnan_float(res) [L176] 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, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:26,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:26,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:26,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:26,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:26,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:26,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:26,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:26,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:26,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:26,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:26,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:26,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:26,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:26,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:26,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:26,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:26,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:26,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:26,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:26,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:26,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:26,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:26,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:26,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:26,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:26,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:26,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:26,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:26,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:26,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:26,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:26,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:26,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:26,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:26,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:26,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:26,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:26,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:26,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:26,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:26,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:25:26,138 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:26,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:26,140 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:26,140 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:26,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:26,141 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:26,141 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:26,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:26,142 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:26,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:26,143 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:26,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:26,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:26,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:26,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:26,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:26,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:26,145 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:25:26,146 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:25:26,146 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:26,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:26,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:26,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:26,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:26,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:25:26,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:26,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:26,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:26,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:26,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:26,150 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:25:26,150 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:25:26,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:26,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:26,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:26,151 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_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2021-10-11 02:25:26,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:26,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:26,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:26,558 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:26,559 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:26,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-11 02:25:26,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/3a043047e/a6c98a2a921f48e0af514da09a60e1dd/FLAGd85cb5593 [2021-10-11 02:25:27,153 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:27,154 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-11 02:25:27,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/3a043047e/a6c98a2a921f48e0af514da09a60e1dd/FLAGd85cb5593 [2021-10-11 02:25:27,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/data/3a043047e/a6c98a2a921f48e0af514da09a60e1dd [2021-10-11 02:25:27,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:27,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:27,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:27,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:27,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:27,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:27,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a15926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27, skipping insertion in model container [2021-10-11 02:25:27,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:27,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:27,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:27,824 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-11 02:25:27,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:27,867 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:27,937 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-11 02:25:27,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:27,959 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:27,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27 WrapperNode [2021-10-11 02:25:27,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:27,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:27,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:27,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:27,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:27,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:28,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:28,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:28,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:28,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... [2021-10-11 02:25:28,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:28,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:28,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:28,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:28,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:25:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:25:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:25:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:25:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:25:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:25:56,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:56,739 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-11 02:25:56,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:56 BoogieIcfgContainer [2021-10-11 02:25:56,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:56,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:56,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:56,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:56,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:27" (1/3) ... [2021-10-11 02:25:56,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4752a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:56, skipping insertion in model container [2021-10-11 02:25:56,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:27" (2/3) ... [2021-10-11 02:25:56,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4752a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:56, skipping insertion in model container [2021-10-11 02:25:56,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:56" (3/3) ... [2021-10-11 02:25:56,762 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2021-10-11 02:25:56,778 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:56,782 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:56,795 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:56,822 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:56,822 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:56,822 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:56,822 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:56,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:56,823 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:56,823 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:56,823 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2021-10-11 02:25:56,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:56,845 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:56,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:56,846 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:56,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:56,853 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2021-10-11 02:25:56,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:56,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630433844] [2021-10-11 02:25:56,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:57,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:25:57,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:57,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:57,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630433844] [2021-10-11 02:25:57,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:57,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:57,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315951859] [2021-10-11 02:25:57,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:25:57,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:57,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:25:57,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:57,670 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2021-10-11 02:25:57,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:57,691 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2021-10-11 02:25:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:25:57,693 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-10-11 02:25:57,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:57,704 INFO L225 Difference]: With dead ends: 99 [2021-10-11 02:25:57,704 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 02:25:57,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:57,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 02:25:57,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 02:25:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 02:25:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2021-10-11 02:25:57,747 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2021-10-11 02:25:57,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:57,747 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-11 02:25:57,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:25:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2021-10-11 02:25:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:25:57,748 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:57,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:57,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:25:57,955 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:57,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:57,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2021-10-11 02:25:57,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:57,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086977718] [2021-10-11 02:25:57,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:58,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:58,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:58,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:58,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086977718] [2021-10-11 02:25:58,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:58,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:58,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200509536] [2021-10-11 02:25:58,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:58,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:58,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:58,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:58,697 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2021-10-11 02:25:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:58,751 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2021-10-11 02:25:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:58,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-10-11 02:25:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:58,754 INFO L225 Difference]: With dead ends: 87 [2021-10-11 02:25:58,754 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 02:25:58,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:58,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 02:25:58,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 02:25:58,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 02:25:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2021-10-11 02:25:58,764 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2021-10-11 02:25:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:58,765 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2021-10-11 02:25:58,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2021-10-11 02:25:58,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:25:58,766 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:58,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:58,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:25:58,990 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:58,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:58,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2021-10-11 02:25:58,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:58,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121631474] [2021-10-11 02:25:58,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:59,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:25:59,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:59,863 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 02:26:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:00,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:00,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121631474] [2021-10-11 02:26:00,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:00,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:26:00,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952150473] [2021-10-11 02:26:00,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:26:00,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:00,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:26:00,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:00,130 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand 6 states. [2021-10-11 02:26:00,416 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2021-10-11 02:26:02,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:02,857 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2021-10-11 02:26:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:26:02,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-10-11 02:26:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:02,896 INFO L225 Difference]: With dead ends: 52 [2021-10-11 02:26:02,896 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:26:02,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:26:02,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:26:02,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 02:26:02,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:26:02,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-10-11 02:26:02,901 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2021-10-11 02:26:02,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:02,901 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-10-11 02:26:02,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:26:02,902 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-10-11 02:26:02,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:26:02,902 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:02,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:03,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:26:03,115 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:03,116 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2021-10-11 02:26:03,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:03,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263270199] [2021-10-11 02:26:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:26:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:03,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:26:03,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:04,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:04,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:04,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263270199] [2021-10-11 02:26:04,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:04,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:04,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568985720] [2021-10-11 02:26:04,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:26:04,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:04,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:26:04,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:04,372 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 6 states. [2021-10-11 02:26:05,433 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-10-11 02:26:05,878 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-10-11 02:26:06,368 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-10-11 02:26:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:06,369 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-10-11 02:26:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:06,369 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:26:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:06,370 INFO L225 Difference]: With dead ends: 18 [2021-10-11 02:26:06,370 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:06,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:26:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:06,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:06,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:06,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:06,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-11 02:26:06,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:06,371 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:06,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:26:06,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:06,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:06,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:26:06,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:26:06,899 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-10-11 02:26:07,373 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-10-11 02:26:07,454 INFO L262 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2021-10-11 02:26:07,454 INFO L262 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2021-10-11 02:26:07,454 INFO L262 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2021-10-11 02:26:07,455 INFO L262 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2021-10-11 02:26:07,455 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-11 02:26:07,455 INFO L258 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_log10f_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10f_~x ULTIMATE.start___ieee754_log10f_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2021-10-11 02:26:07,455 INFO L262 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-10-11 02:26:07,455 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:26:07,455 INFO L258 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2021-10-11 02:26:07,456 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:26:07,456 INFO L262 CegarLoopResult]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2021-10-11 02:26:07,456 INFO L258 CegarLoopResult]: At program point L152-2(lines 152 156) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2021-10-11 02:26:07,456 INFO L262 CegarLoopResult]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2021-10-11 02:26:07,456 INFO L262 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2021-10-11 02:26:07,456 INFO L258 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2021-10-11 02:26:07,456 INFO L262 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2021-10-11 02:26:07,456 INFO L262 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L262 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L262 CegarLoopResult]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L262 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L258 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2021-10-11 02:26:07,457 INFO L262 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L262 CegarLoopResult]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2021-10-11 02:26:07,457 INFO L258 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2021-10-11 02:26:07,458 INFO L262 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2021-10-11 02:26:07,458 INFO L262 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2021-10-11 02:26:07,458 INFO L262 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-10-11 02:26:07,458 INFO L258 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_log10f_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10f_~x ULTIMATE.start___ieee754_log10f_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2021-10-11 02:26:07,458 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:26:07,458 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2021-10-11 02:26:07,458 INFO L265 CegarLoopResult]: At program point L181(lines 161 182) the Hoare annotation is: true [2021-10-11 02:26:07,459 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-10-11 02:26:07,459 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:26:07,459 INFO L262 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2021-10-11 02:26:07,459 INFO L262 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2021-10-11 02:26:07,459 INFO L262 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2021-10-11 02:26:07,459 INFO L262 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2021-10-11 02:26:07,459 INFO L258 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2021-10-11 02:26:07,459 INFO L258 CegarLoopResult]: At program point L158(lines 150 159) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_1 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_1 (_ bv0 32)))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2021-10-11 02:26:07,460 INFO L262 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2021-10-11 02:26:07,460 INFO L262 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-10-11 02:26:07,460 INFO L258 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2021-10-11 02:26:07,460 INFO L262 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2021-10-11 02:26:07,460 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-10-11 02:26:07,460 INFO L258 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2021-10-11 02:26:07,460 INFO L262 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-10-11 02:26:07,460 INFO L262 CegarLoopResult]: For program point L175(lines 175 178) no Hoare annotation was computed. [2021-10-11 02:26:07,460 INFO L262 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2021-10-11 02:26:07,461 INFO L262 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-10-11 02:26:07,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,476 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,488 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,488 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,489 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,491 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,494 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,523 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:07 BoogieIcfgContainer [2021-10-11 02:26:07,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:07,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:07,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:07,528 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:07,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:56" (3/4) ... [2021-10-11 02:26:07,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:07,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-10-11 02:26:07,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 02:26:07,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:07,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:07,582 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2021-10-11 02:26:07,583 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2021-10-11 02:26:07,583 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2021-10-11 02:26:07,584 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2021-10-11 02:26:07,585 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2021-10-11 02:26:07,647 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b94cef3-fd8a-4b60-9271-eeb0a4cc51e0/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:07,654 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:07,655 INFO L168 Benchmark]: Toolchain (without parser) took 40127.43 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 32.9 MB in the beginning and 53.7 MB in the end (delta: -20.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:07,656 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.0 MB in the beginning and 36.0 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:07,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.70 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 34.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:07,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.83 ms. Allocated memory is still 54.5 MB. Free memory was 34.6 MB in the beginning and 32.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:07,657 INFO L168 Benchmark]: Boogie Preprocessor took 74.29 ms. Allocated memory is still 54.5 MB. Free memory was 32.3 MB in the beginning and 30.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:07,658 INFO L168 Benchmark]: RCFGBuilder took 28617.64 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 30.0 MB in the beginning and 39.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:07,658 INFO L168 Benchmark]: TraceAbstraction took 10783.65 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 59.4 MB in the end (delta: -20.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:07,659 INFO L168 Benchmark]: Witness Printer took 126.38 ms. Allocated memory is still 79.7 MB. Free memory was 59.4 MB in the beginning and 53.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:07,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.0 MB in the beginning and 36.0 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.70 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 34.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.83 ms. Allocated memory is still 54.5 MB. Free memory was 34.6 MB in the beginning and 32.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.29 ms. Allocated memory is still 54.5 MB. Free memory was 32.3 MB in the beginning and 30.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 28617.64 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 30.0 MB in the beginning and 39.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10783.65 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 59.4 MB in the end (delta: -20.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Witness Printer took 126.38 ms. Allocated memory is still 79.7 MB. Free memory was 59.4 MB in the beginning and 53.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 176]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 107]: Loop Invariant [2021-10-11 02:26:07,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,680 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,680 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,680 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant [2021-10-11 02:26:07,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2021-10-11 02:26:07,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] Derived loop invariant: (((\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && 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 [2021-10-11 02:26:07,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-11 02:26:07,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 150]: Loop Invariant [2021-10-11 02:26:07,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,695 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] [2021-10-11 02:26:07,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:26:07,695 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_1,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_1 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_1, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 20 SDslu, 121 SDs, 0 SdLazy, 27 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 105 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 11 QuantifiedInterpolants, 3704 SizeOfPredicates, 15 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...