./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan --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 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan --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 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:35:44,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:35:44,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:35:45,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:35:45,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:35:45,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:35:45,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:35:45,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:35:45,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:35:45,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:35:45,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:35:45,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:35:45,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:35:45,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:35:45,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:35:45,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:35:45,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:35:45,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:35:45,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:35:45,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:35:45,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:35:45,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:35:45,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:35:45,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:35:45,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:35:45,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:35:45,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:35:45,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:35:45,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:35:45,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:35:45,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:35:45,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:35:45,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:35:45,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:35:45,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:35:45,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:35:45,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:35:45,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:35:45,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:35:45,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:35:45,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:35:45,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:35:45,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:35:45,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:35:45,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:35:45,174 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:35:45,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:35:45,175 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:35:45,175 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:35:45,175 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:35:45,175 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:35:45,176 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:35:45,177 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:35:45,177 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:35:45,178 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:35:45,178 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:35:45,178 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:35:45,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:35:45,179 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:35:45,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:35:45,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:35:45,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:35:45,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:35:45,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:35:45,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:35:45,181 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:35:45,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:35:45,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:35:45,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:35:45,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:35:45,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:35:45,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:35:45,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:35:45,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:35:45,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:35:45,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:35:45,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:35:45,186 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:35:45,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:35:45,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:35:45,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:35:45,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:35:45,187 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-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 [2020-11-30 01:35:45,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:35:45,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:35:45,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:35:45,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:35:45,560 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:35:45,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-11-30 01:35:45,642 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/9715ce303/ca6d4e9304134e189c760d9dce0792ca/FLAGf73b4c463 [2020-11-30 01:35:46,286 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:35:46,290 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-11-30 01:35:46,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/9715ce303/ca6d4e9304134e189c760d9dce0792ca/FLAGf73b4c463 [2020-11-30 01:35:46,638 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/9715ce303/ca6d4e9304134e189c760d9dce0792ca [2020-11-30 01:35:46,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:35:46,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:35:46,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:35:46,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:35:46,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:35:46,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:35:46" (1/1) ... [2020-11-30 01:35:46,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599e1e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:46, skipping insertion in model container [2020-11-30 01:35:46,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:35:46" (1/1) ... [2020-11-30 01:35:46,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:35:46,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:35:47,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:35:47,020 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:35:47,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:35:47,087 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:35:47,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47 WrapperNode [2020-11-30 01:35:47,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:35:47,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:35:47,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:35:47,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:35:47,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:35:47,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:35:47,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:35:47,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:35:47,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... [2020-11-30 01:35:47,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:35:47,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:35:47,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:35:47,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:35:47,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:35:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:35:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:35:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:35:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:35:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:35:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:35:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:35:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:35:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:35:48,112 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:35:48,113 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:35:48,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:35:48 BoogieIcfgContainer [2020-11-30 01:35:48,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:35:48,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:35:48,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:35:48,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:35:48,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:35:46" (1/3) ... [2020-11-30 01:35:48,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dafa5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:35:48, skipping insertion in model container [2020-11-30 01:35:48,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:47" (2/3) ... [2020-11-30 01:35:48,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dafa5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:35:48, skipping insertion in model container [2020-11-30 01:35:48,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:35:48" (3/3) ... [2020-11-30 01:35:48,127 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2020-11-30 01:35:48,140 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:35:48,145 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:35:48,163 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:35:48,202 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:35:48,203 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:35:48,203 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:35:48,203 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:35:48,203 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:35:48,203 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:35:48,203 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:35:48,204 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:35:48,218 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-30 01:35:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:35:48,225 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:48,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:48,227 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:48,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1496489346, now seen corresponding path program 1 times [2020-11-30 01:35:48,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:35:48,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004169690] [2020-11-30 01:35:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:35:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:35:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:48,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004169690] [2020-11-30 01:35:48,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:35:48,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:35:48,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75510144] [2020-11-30 01:35:48,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:35:48,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:35:48,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:35:48,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:35:48,459 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-30 01:35:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:35:48,483 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-30 01:35:48,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:35:48,485 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 01:35:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:35:48,506 INFO L225 Difference]: With dead ends: 39 [2020-11-30 01:35:48,511 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 01:35:48,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:35:48,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 01:35:48,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 01:35:48,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:35:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-30 01:35:48,556 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2020-11-30 01:35:48,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:35:48,556 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-30 01:35:48,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:35:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-30 01:35:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:35:48,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:48,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:48,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:35:48,559 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:48,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:48,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1684393161, now seen corresponding path program 1 times [2020-11-30 01:35:48,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:35:48,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631986660] [2020-11-30 01:35:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:35:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:35:48,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:35:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:35:48,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:35:48,795 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:35:48,796 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:35:48,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:35:48,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:35:48 BoogieIcfgContainer [2020-11-30 01:35:48,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:35:48,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:35:48,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:35:48,843 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:35:48,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:35:48" (3/4) ... [2020-11-30 01:35:48,848 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:35:48,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:35:48,854 INFO L168 Benchmark]: Toolchain (without parser) took 2207.26 ms. Allocated memory is still 146.8 MB. Free memory was 119.6 MB in the beginning and 67.4 MB in the end (delta: 52.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:48,857 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 49.9 MB in the beginning and 49.9 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:35:48,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.72 ms. Allocated memory is still 146.8 MB. Free memory was 119.6 MB in the beginning and 122.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:48,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.90 ms. Allocated memory is still 146.8 MB. Free memory was 122.9 MB in the beginning and 120.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:48,861 INFO L168 Benchmark]: Boogie Preprocessor took 33.34 ms. Allocated memory is still 146.8 MB. Free memory was 120.8 MB in the beginning and 119.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:48,863 INFO L168 Benchmark]: RCFGBuilder took 947.96 ms. Allocated memory is still 146.8 MB. Free memory was 119.3 MB in the beginning and 91.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:48,864 INFO L168 Benchmark]: TraceAbstraction took 723.72 ms. Allocated memory is still 146.8 MB. Free memory was 90.4 MB in the beginning and 67.4 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:48,864 INFO L168 Benchmark]: Witness Printer took 7.38 ms. Allocated memory is still 146.8 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:35:48,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 49.9 MB in the beginning and 49.9 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.72 ms. Allocated memory is still 146.8 MB. Free memory was 119.6 MB in the beginning and 122.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.90 ms. Allocated memory is still 146.8 MB. Free memory was 122.9 MB in the beginning and 120.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.34 ms. Allocated memory is still 146.8 MB. Free memory was 120.8 MB in the beginning and 119.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 947.96 ms. Allocated memory is still 146.8 MB. Free memory was 119.3 MB in the beginning and 91.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 723.72 ms. Allocated memory is still 146.8 MB. Free memory was 90.4 MB in the beginning and 67.4 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 7.38 ms. Allocated memory is still 146.8 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L77] float x = -0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [huge_floor=1000000000000000000000000000000] [L78] float res = floor_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000] [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1052c.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:35:51,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:35:51,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:35:51,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:35:51,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:35:51,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:35:51,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:35:51,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:35:51,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:35:51,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:35:51,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:35:51,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:35:51,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:35:51,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:35:51,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:35:51,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:35:51,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:35:51,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:35:51,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:35:51,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:35:51,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:35:51,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:35:51,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:35:51,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:35:51,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:35:51,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:35:51,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:35:51,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:35:51,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:35:51,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:35:51,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:35:51,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:35:51,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:35:51,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:35:51,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:35:51,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:35:51,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:35:51,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:35:51,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:35:51,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:35:51,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:35:51,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:35:51,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:35:51,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:35:51,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:35:51,647 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:35:51,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:35:51,648 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:35:51,648 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:35:51,648 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:35:51,649 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:35:51,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:35:51,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:35:51,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:35:51,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:35:51,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:35:51,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:35:51,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:35:51,653 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:35:51,653 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:35:51,653 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:35:51,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:35:51,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:35:51,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:35:51,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:35:51,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:35:51,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:35:51,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:35:51,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:35:51,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:35:51,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:35:51,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:35:51,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:35:51,657 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:35:51,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:35:51,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:35:51,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:35:51,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:35:51,658 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 [2020-11-30 01:35:52,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:35:52,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:35:52,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:35:52,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:35:52,151 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:35:52,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-11-30 01:35:52,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/5e95bef0f/46799a264ffd483da6ed2baad3533755/FLAGd81ea31bb [2020-11-30 01:35:53,017 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:35:53,021 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-11-30 01:35:53,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/5e95bef0f/46799a264ffd483da6ed2baad3533755/FLAGd81ea31bb [2020-11-30 01:35:53,360 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/data/5e95bef0f/46799a264ffd483da6ed2baad3533755 [2020-11-30 01:35:53,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:35:53,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:35:53,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:35:53,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:35:53,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:35:53,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2019f288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53, skipping insertion in model container [2020-11-30 01:35:53,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:35:53,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:35:53,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:35:53,642 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:35:53,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:35:53,713 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:35:53,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53 WrapperNode [2020-11-30 01:35:53,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:35:53,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:35:53,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:35:53,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:35:53,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:35:53,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:35:53,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:35:53,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:35:53,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... [2020-11-30 01:35:53,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:35:53,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:35:53,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:35:53,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:35:53,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:35:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:35:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:35:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 01:35:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:35:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:35:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:35:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 01:35:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:35:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:35:55,010 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:35:55,011 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:35:55,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:35:55 BoogieIcfgContainer [2020-11-30 01:35:55,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:35:55,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:35:55,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:35:55,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:35:55,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:35:53" (1/3) ... [2020-11-30 01:35:55,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7dcbf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:35:55, skipping insertion in model container [2020-11-30 01:35:55,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:35:53" (2/3) ... [2020-11-30 01:35:55,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7dcbf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:35:55, skipping insertion in model container [2020-11-30 01:35:55,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:35:55" (3/3) ... [2020-11-30 01:35:55,038 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2020-11-30 01:35:55,047 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:35:55,051 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:35:55,063 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:35:55,084 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:35:55,084 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:35:55,084 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:35:55,085 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:35:55,085 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:35:55,085 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:35:55,085 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:35:55,085 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:35:55,097 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-30 01:35:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:35:55,102 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:55,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:55,102 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:55,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:55,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-30 01:35:55,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:35:55,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469799725] [2020-11-30 01:35:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:35:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:35:55,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:35:55,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:35:55,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:55,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:35:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:55,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469799725] [2020-11-30 01:35:55,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:35:55,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:35:55,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946519121] [2020-11-30 01:35:55,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:35:55,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:35:55,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:35:55,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:35:55,301 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-30 01:35:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:35:55,322 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-30 01:35:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:35:55,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 01:35:55,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:35:55,333 INFO L225 Difference]: With dead ends: 59 [2020-11-30 01:35:55,334 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 01:35:55,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:35:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 01:35:55,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-30 01:35:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 01:35:55,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-30 01:35:55,372 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-30 01:35:55,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:35:55,373 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-30 01:35:55,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:35:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-30 01:35:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:35:55,374 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:55,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:55,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:35:55,594 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:55,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:55,595 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-30 01:35:55,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:35:55,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80980709] [2020-11-30 01:35:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:35:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:35:55,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 01:35:55,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:35:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:55,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:35:56,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:56,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80980709] [2020-11-30 01:35:56,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:35:56,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:35:56,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971948172] [2020-11-30 01:35:56,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:35:56,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:35:56,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:35:56,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:35:56,043 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-30 01:35:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:35:56,422 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-11-30 01:35:56,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:35:56,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-30 01:35:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:35:56,424 INFO L225 Difference]: With dead ends: 51 [2020-11-30 01:35:56,425 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 01:35:56,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:35:56,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 01:35:56,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-11-30 01:35:56,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:35:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-11-30 01:35:56,435 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2020-11-30 01:35:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:35:56,438 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-11-30 01:35:56,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:35:56,439 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-11-30 01:35:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:35:56,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:56,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:56,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:35:56,654 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:56,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:56,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-30 01:35:56,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:35:56,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440263301] [2020-11-30 01:35:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:35:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:35:56,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:35:56,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:35:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:56,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:35:57,346 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 01:35:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:57,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440263301] [2020-11-30 01:35:57,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:35:57,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 01:35:57,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649256180] [2020-11-30 01:35:57,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:35:57,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:35:57,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:35:57,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:35:57,506 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2020-11-30 01:35:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:35:57,802 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-11-30 01:35:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:35:57,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-30 01:35:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:35:57,809 INFO L225 Difference]: With dead ends: 34 [2020-11-30 01:35:57,809 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 01:35:57,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:35:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 01:35:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 01:35:57,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:35:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 01:35:57,817 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2020-11-30 01:35:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:35:57,818 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 01:35:57,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:35:57,818 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-30 01:35:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:35:57,819 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:57,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:58,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:35:58,035 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:58,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:58,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2020-11-30 01:35:58,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:35:58,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618907806] [2020-11-30 01:35:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/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 [2020-11-30 01:35:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:35:58,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:35:58,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:35:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:58,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:35:58,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:58,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618907806] [2020-11-30 01:35:58,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:35:58,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:35:58,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356528315] [2020-11-30 01:35:58,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:35:58,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:35:58,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:35:58,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:35:58,366 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2020-11-30 01:35:58,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:35:58,516 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-11-30 01:35:58,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:35:58,517 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-11-30 01:35:58,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:35:58,518 INFO L225 Difference]: With dead ends: 34 [2020-11-30 01:35:58,518 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 01:35:58,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:35:58,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 01:35:58,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 01:35:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:35:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-30 01:35:58,529 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2020-11-30 01:35:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:35:58,530 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-30 01:35:58,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:35:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-30 01:35:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:35:58,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:58,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:58,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:35:58,747 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:58,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:58,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2020-11-30 01:35:58,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:35:58,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298002438] [2020-11-30 01:35:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 01:35:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:35:58,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:35:58,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:35:58,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:58,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:35:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:59,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298002438] [2020-11-30 01:35:59,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:35:59,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-30 01:35:59,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268536023] [2020-11-30 01:35:59,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:35:59,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:35:59,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:35:59,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:35:59,093 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2020-11-30 01:35:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:35:59,302 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-11-30 01:35:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:35:59,304 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-30 01:35:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:35:59,304 INFO L225 Difference]: With dead ends: 25 [2020-11-30 01:35:59,304 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 01:35:59,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:35:59,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 01:35:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 01:35:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:35:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-11-30 01:35:59,315 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2020-11-30 01:35:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:35:59,318 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-11-30 01:35:59,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:35:59,319 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-11-30 01:35:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:35:59,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:35:59,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:35:59,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 01:35:59,522 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:35:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:35:59,522 INFO L82 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2020-11-30 01:35:59,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:35:59,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245812402] [2020-11-30 01:35:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-30 01:35:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:35:59,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 01:35:59,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:35:59,803 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:35:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:35:59,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:36:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:36:00,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245812402] [2020-11-30 01:36:00,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:36:00,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-30 01:36:00,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142428975] [2020-11-30 01:36:00,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 01:36:00,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:36:00,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 01:36:00,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:36:00,322 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 16 states. [2020-11-30 01:36:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:36:00,750 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-11-30 01:36:00,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:36:00,752 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-30 01:36:00,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:36:00,753 INFO L225 Difference]: With dead ends: 22 [2020-11-30 01:36:00,753 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:36:00,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-30 01:36:00,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:36:00,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:36:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:36:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:36:00,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-30 01:36:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:36:00,754 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:36:00,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 01:36:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:36:00,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:36:00,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 01:36:00,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-30 01:36:01,303 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-30 01:36:01,304 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_floor_float_~x .cse0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) |ULTIMATE.start_main_#t~short15|)) [2020-11-30 01:36:01,304 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-30 01:36:01,304 INFO L277 CegarLoopResult]: At program point L86(lines 70 87) the Hoare annotation is: true [2020-11-30 01:36:01,304 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-30 01:36:01,304 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-30 01:36:01,304 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_floor_float_~x .cse0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse0) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))))) [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:36:01,305 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-30 01:36:01,306 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-30 01:36:01,306 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-30 01:36:01,306 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-30 01:36:01,306 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_floor_float_~x .cse0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short15|)) [2020-11-30 01:36:01,306 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-30 01:36:01,306 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-30 01:36:01,306 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_floor_float_~x (fp.neg (_ +zero 8 24))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-30 01:36:01,307 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-30 01:36:01,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,325 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,355 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,356 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,358 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,359 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,372 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,375 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,375 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:36:01 BoogieIcfgContainer [2020-11-30 01:36:01,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:36:01,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:36:01,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:36:01,379 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:36:01,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:35:55" (3/4) ... [2020-11-30 01:36:01,383 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:36:01,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 01:36:01,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:36:01,400 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:36:01,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:36:01,433 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) [2020-11-30 01:36:01,436 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-30 01:36:01,436 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ix == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-30 01:36:01,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2986bae6-c794-4473-8dbc-5c4567f6a6bf/bin/utaipan/witness.graphml [2020-11-30 01:36:01,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:36:01,479 INFO L168 Benchmark]: Toolchain (without parser) took 8107.00 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 57.0 MB in the beginning and 82.9 MB in the end (delta: -25.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:01,480 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:36:01,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.86 ms. Allocated memory is still 77.6 MB. Free memory was 56.8 MB in the beginning and 62.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:01,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.47 ms. Allocated memory is still 77.6 MB. Free memory was 62.0 MB in the beginning and 60.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:01,482 INFO L168 Benchmark]: Boogie Preprocessor took 51.52 ms. Allocated memory is still 77.6 MB. Free memory was 60.5 MB in the beginning and 58.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:36:01,484 INFO L168 Benchmark]: RCFGBuilder took 1147.10 ms. Allocated memory is still 77.6 MB. Free memory was 58.8 MB in the beginning and 39.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:01,484 INFO L168 Benchmark]: TraceAbstraction took 6363.43 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 39.5 MB in the beginning and 87.0 MB in the end (delta: -47.6 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:01,485 INFO L168 Benchmark]: Witness Printer took 99.30 ms. Allocated memory is still 107.0 MB. Free memory was 87.0 MB in the beginning and 82.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:01,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.86 ms. Allocated memory is still 77.6 MB. Free memory was 56.8 MB in the beginning and 62.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.47 ms. Allocated memory is still 77.6 MB. Free memory was 62.0 MB in the beginning and 60.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.52 ms. Allocated memory is still 77.6 MB. Free memory was 60.5 MB in the beginning and 58.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1147.10 ms. Allocated memory is still 77.6 MB. Free memory was 58.8 MB in the beginning and 39.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6363.43 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 39.5 MB in the beginning and 87.0 MB in the end (delta: -47.6 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. * Witness Printer took 99.30 ms. Allocated memory is still 107.0 MB. Free memory was 87.0 MB in the beginning and 82.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,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[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,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[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,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[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,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[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,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[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2020-11-30 01:36:01,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-11-30 01:36:01,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant [2020-11-30 01:36:01,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 58]: Loop Invariant [2020-11-30 01:36:01,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:36:01,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-30 01:36:01,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:36:01,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ix == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 319 SDslu, 120 SDs, 0 SdLazy, 137 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 127 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 208 HoareAnnotationTreeSize, 5 FomulaSimplifications, 204 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 22 QuantifiedInterpolants, 18472 SizeOfPredicates, 40 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...