./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.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_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 51b19897c11e4f835362356179f819ee4e466264 .......................................................................................................................................................................................................................................................................................................... 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_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 51b19897c11e4f835362356179f819ee4e466264 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:39:41,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:41,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:41,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:41,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:41,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:41,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:41,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:41,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:41,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:41,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:41,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:41,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:41,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:41,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:41,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:41,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:41,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:41,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:41,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:41,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:41,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:41,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:41,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:41,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:41,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:41,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:41,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:41,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:41,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:41,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:41,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:41,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:41,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:41,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:41,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:41,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:41,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:41,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:41,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:41,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:41,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:39:42,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:42,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:42,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:42,015 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:42,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:42,015 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:42,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:39:42,016 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:42,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:42,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:39:42,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:39:42,016 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:42,017 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:39:42,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:39:42,017 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:39:42,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:42,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:42,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:39:42,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:42,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:42,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:42,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:42,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:42,019 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:42,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:42,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:42,020 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:42,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:42,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:42,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:42,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:42,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:42,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:42,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:42,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:42,022 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:39:42,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:39:42,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:42,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:42,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:42,022 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_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-28 07:39:42,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:42,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:42,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:42,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:42,274 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:42,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-28 07:39:42,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/8554e9bc6/e55f14b61fd0430481402f25002c7e98/FLAG1bf486d7c [2020-11-28 07:39:42,764 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:42,764 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-28 07:39:42,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/8554e9bc6/e55f14b61fd0430481402f25002c7e98/FLAG1bf486d7c [2020-11-28 07:39:43,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/8554e9bc6/e55f14b61fd0430481402f25002c7e98 [2020-11-28 07:39:43,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:43,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:43,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:43,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:43,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:43,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5324e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43, skipping insertion in model container [2020-11-28 07:39:43,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:43,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:43,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:43,368 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:43,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:43,416 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:43,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43 WrapperNode [2020-11-28 07:39:43,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:43,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:43,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:43,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:43,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:43,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:43,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:43,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:43,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:43,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:43,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:43,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:43,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 [2020-11-28 07:39:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:39:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:39:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:39:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:39:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:39:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:39:44,231 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:44,231 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 07:39:44,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:44 BoogieIcfgContainer [2020-11-28 07:39:44,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:44,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:44,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:44,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:44,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:43" (1/3) ... [2020-11-28 07:39:44,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd9db95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:44, skipping insertion in model container [2020-11-28 07:39:44,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (2/3) ... [2020-11-28 07:39:44,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd9db95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:44, skipping insertion in model container [2020-11-28 07:39:44,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:44" (3/3) ... [2020-11-28 07:39:44,243 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-28 07:39:44,257 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:44,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:39:44,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:39:44,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:44,321 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:44,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:44,322 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:44,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:44,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:44,323 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:44,323 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-28 07:39:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:39:44,343 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:44,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:44,344 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:44,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1496489346, now seen corresponding path program 1 times [2020-11-28 07:39:44,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:44,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293887867] [2020-11-28 07:39:44,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:44,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293887867] [2020-11-28 07:39:44,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:44,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:39:44,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316515904] [2020-11-28 07:39:44,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:39:44,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:44,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:39:44,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:39:44,493 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-28 07:39:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:44,509 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-28 07:39:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:39:44,511 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-28 07:39:44,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:44,517 INFO L225 Difference]: With dead ends: 39 [2020-11-28 07:39:44,518 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 07:39:44,520 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 [2020-11-28 07:39:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 07:39:44,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-28 07:39:44,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 07:39:44,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-28 07:39:44,552 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2020-11-28 07:39:44,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:44,553 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-28 07:39:44,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:39:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-28 07:39:44,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:39:44,554 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:44,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:44,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:39:44,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:44,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:44,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1684393161, now seen corresponding path program 1 times [2020-11-28 07:39:44,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:44,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213840615] [2020-11-28 07:39:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:44,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:44,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:44,704 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:39:44,705 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:39:44,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:39:44,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:44 BoogieIcfgContainer [2020-11-28 07:39:44,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:44,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:44,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:44,735 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:44,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:44" (3/4) ... [2020-11-28 07:39:44,738 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:39:44,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:44,741 INFO L168 Benchmark]: Toolchain (without parser) took 1594.81 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 73.4 MB in the beginning and 72.4 MB in the end (delta: 981.1 kB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,741 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 100.7 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:44,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.04 ms. Allocated memory is still 100.7 MB. Free memory was 73.1 MB in the beginning and 77.1 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,743 INFO L168 Benchmark]: Boogie Preprocessor took 29.44 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 74.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,744 INFO L168 Benchmark]: RCFGBuilder took 747.60 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 74.0 MB in the beginning and 96.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,745 INFO L168 Benchmark]: TraceAbstraction took 498.28 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 73.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,746 INFO L168 Benchmark]: Witness Printer took 4.12 ms. Allocated memory is still 121.6 MB. Free memory was 73.0 MB in the beginning and 72.4 MB in the end (delta: 578.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 100.7 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.04 ms. Allocated memory is still 100.7 MB. Free memory was 73.1 MB in the beginning and 77.1 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.44 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 74.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 747.60 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 74.0 MB in the beginning and 96.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 498.28 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 73.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.12 ms. Allocated memory is still 121.6 MB. Free memory was 73.0 MB in the beginning and 72.4 MB in the end (delta: 578.8 kB). Peak memory consumption was 2.1 MB. 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 82, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 78, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; [L78] float x = -0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=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_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1092a.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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 [2020-11-28 07:39:47,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:47,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:47,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:47,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:47,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:47,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:47,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:47,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:47,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:47,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:47,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:47,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:47,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:47,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:47,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:47,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:47,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:47,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:47,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:47,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:47,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:47,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:47,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:47,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:47,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:47,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:47,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:47,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:47,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:47,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:47,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:47,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:47,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:47,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:47,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:47,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:47,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:47,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:47,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:47,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:47,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:39:47,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:47,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:47,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:47,400 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:47,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:47,400 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:47,400 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:47,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:47,401 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:47,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:47,402 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:47,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:47,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:47,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:47,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:47,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:47,403 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:47,403 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:39:47,403 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:39:47,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:47,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:47,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:47,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:47,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:47,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:39:47,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:47,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:47,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:47,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:47,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:47,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:47,406 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:39:47,406 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:39:47,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:47,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:47,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:47,407 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_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-28 07:39:47,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:47,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:47,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:47,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:47,841 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:47,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-28 07:39:47,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/4f6c2a98b/2aa3ecf529814fe98e6ae62f7e28658c/FLAGbe40b8ff6 [2020-11-28 07:39:48,529 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:48,533 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-28 07:39:48,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/4f6c2a98b/2aa3ecf529814fe98e6ae62f7e28658c/FLAGbe40b8ff6 [2020-11-28 07:39:48,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/data/4f6c2a98b/2aa3ecf529814fe98e6ae62f7e28658c [2020-11-28 07:39:48,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:48,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:48,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:48,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:48,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:48,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44aab8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48, skipping insertion in model container [2020-11-28 07:39:48,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:48,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:49,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:49,157 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:49,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:49,258 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:49,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49 WrapperNode [2020-11-28 07:39:49,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:49,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:49,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:49,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:49,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:49,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:49,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:49,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:49,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... [2020-11-28 07:39:49,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:49,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:49,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:49,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:49,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 [2020-11-28 07:39:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:39:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 07:39:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:39:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 07:39:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:39:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:39:50,460 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:50,460 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 07:39:50,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:50 BoogieIcfgContainer [2020-11-28 07:39:50,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:50,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:50,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:50,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:50,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:48" (1/3) ... [2020-11-28 07:39:50,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44535930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:50, skipping insertion in model container [2020-11-28 07:39:50,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:49" (2/3) ... [2020-11-28 07:39:50,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44535930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:50, skipping insertion in model container [2020-11-28 07:39:50,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:50" (3/3) ... [2020-11-28 07:39:50,471 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-28 07:39:50,481 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:50,485 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:39:50,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:39:50,522 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:50,522 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:50,522 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:50,522 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:50,522 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:50,523 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:50,523 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:50,523 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:50,535 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-28 07:39:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:39:50,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:50,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:50,542 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:50,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:50,547 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-28 07:39:50,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:50,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101958769] [2020-11-28 07:39:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 [2020-11-28 07:39:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:50,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:39:50,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:50,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:50,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:50,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101958769] [2020-11-28 07:39:50,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:50,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:39:50,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679267719] [2020-11-28 07:39:50,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:39:50,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:50,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:39:50,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:39:50,731 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-28 07:39:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:50,747 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-28 07:39:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:39:50,748 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 07:39:50,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:50,756 INFO L225 Difference]: With dead ends: 59 [2020-11-28 07:39:50,757 INFO L226 Difference]: Without dead ends: 27 [2020-11-28 07:39:50,759 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 [2020-11-28 07:39:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-28 07:39:50,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-28 07:39:50,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 07:39:50,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-28 07:39:50,801 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-28 07:39:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:50,802 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-28 07:39:50,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:39:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-28 07:39:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:39:50,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:50,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:51,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:39:51,018 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:51,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:51,018 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-28 07:39:51,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:51,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282812009] [2020-11-28 07:39:51,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 [2020-11-28 07:39:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:51,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 07:39:51,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:51,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:51,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282812009] [2020-11-28 07:39:51,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:51,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 07:39:51,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114903077] [2020-11-28 07:39:51,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:39:51,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:51,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:39:51,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:39:51,395 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-28 07:39:51,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:51,617 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-11-28 07:39:51,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:39:51,621 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 07:39:51,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:51,622 INFO L225 Difference]: With dead ends: 39 [2020-11-28 07:39:51,622 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 07:39:51,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:39:51,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 07:39:51,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 07:39:51,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 07:39:51,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-28 07:39:51,632 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-28 07:39:51,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:51,633 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 07:39:51,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:39:51,633 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 07:39:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:39:51,634 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:51,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:51,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:39:51,842 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:51,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:51,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-28 07:39:51,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:51,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416554606] [2020-11-28 07:39:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 [2020-11-28 07:39:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:52,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 07:39:52,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:52,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:52,472 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-28 07:39:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:52,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416554606] [2020-11-28 07:39:52,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:52,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:39:52,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595443437] [2020-11-28 07:39:52,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:39:52,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:52,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:39:52,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:39:52,672 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-28 07:39:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:52,894 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-28 07:39:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:39:52,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 07:39:52,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:52,899 INFO L225 Difference]: With dead ends: 33 [2020-11-28 07:39:52,899 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 07:39:52,900 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 [2020-11-28 07:39:52,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 07:39:52,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 07:39:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 07:39:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-28 07:39:52,904 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-28 07:39:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:52,905 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-28 07:39:52,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:39:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-28 07:39:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 07:39:52,906 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:52,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:53,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:39:53,107 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:53,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:53,107 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2020-11-28 07:39:53,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:53,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576749708] [2020-11-28 07:39:53,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 [2020-11-28 07:39:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:53,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 07:39:53,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:53,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:53,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:53,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576749708] [2020-11-28 07:39:53,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:53,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-28 07:39:53,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929449482] [2020-11-28 07:39:53,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:39:53,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:53,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:39:53,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:39:53,391 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-11-28 07:39:53,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:53,606 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-28 07:39:53,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:39:53,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-28 07:39:53,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:53,607 INFO L225 Difference]: With dead ends: 24 [2020-11-28 07:39:53,607 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 07:39:53,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:39:53,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 07:39:53,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 07:39:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 07:39:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-28 07:39:53,611 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-11-28 07:39:53,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:53,611 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-28 07:39:53,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:39:53,611 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-28 07:39:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 07:39:53,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:53,612 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] [2020-11-28 07:39:53,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:39:53,813 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:53,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:53,813 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2020-11-28 07:39:53,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:53,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191224898] [2020-11-28 07:39:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/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 [2020-11-28 07:39:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:53,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 07:39:53,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:54,132 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:39:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:54,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:54,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191224898] [2020-11-28 07:39:54,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:54,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-28 07:39:54,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668115107] [2020-11-28 07:39:54,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-28 07:39:54,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:54,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-28 07:39:54,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-28 07:39:54,562 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-11-28 07:39:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:54,992 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-28 07:39:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 07:39:54,993 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-11-28 07:39:54,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:54,994 INFO L225 Difference]: With dead ends: 21 [2020-11-28 07:39:54,994 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:39:54,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-28 07:39:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:39:54,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:39:54,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:39:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:39:54,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-28 07:39:54,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:54,995 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:39:54,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-28 07:39:54,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:39:54,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:39:55,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 07:39:55,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:39:55,453 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-28 07:39:55,661 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-11-28 07:39:55,664 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-28 07:39:55,664 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-28 07:39:55,664 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:39:55,665 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 07:39:55,665 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:39:55,665 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:39:55,665 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-28 07:39:55,665 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-28 07:39:55,665 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-28 07:39:55,667 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-28 07:39:55,667 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-28 07:39:55,667 INFO L277 CegarLoopResult]: At program point L87(lines 70 88) the Hoare annotation is: true [2020-11-28 07:39:55,667 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-28 07:39:55,672 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-28 07:39:55,672 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))))) [2020-11-28 07:39:55,672 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-28 07:39:55,672 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-28 07:39:55,673 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:39:55,673 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:39:55,673 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-28 07:39:55,673 INFO L274 CegarLoopResult]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2020-11-28 07:39:55,673 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:39:55,673 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-28 07:39:55,674 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-28 07:39:55,674 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-28 07:39:55,674 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-28 07:39:55,674 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 (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___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-28 07:39:55,674 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-28 07:39:55,675 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-28 07:39:55,675 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= ULTIMATE.start_ceil_float_~x (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-28 07:39:55,675 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-28 07:39:55,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,687 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,688 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,688 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,697 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,719 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:55 BoogieIcfgContainer [2020-11-28 07:39:55,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:55,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:55,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:55,732 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:55,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:50" (3/4) ... [2020-11-28 07:39:55,736 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:39:55,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 07:39:55,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:39:55,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:39:55,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:39:55,778 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) [2020-11-28 07:39:55,780 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-28 07:39:55,780 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-28 07:39:55,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aea3ad0b-4fe2-4290-ab78-f468c2355dc8/bin/utaipan/witness.graphml [2020-11-28 07:39:55,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:55,829 INFO L168 Benchmark]: Toolchain (without parser) took 6949.12 ms. Allocated memory was 54.5 MB in the beginning and 88.1 MB in the end (delta: 33.6 MB). Free memory was 31.2 MB in the beginning and 60.7 MB in the end (delta: -29.6 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:55,829 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.2 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:55,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.97 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 31.0 MB in the beginning and 55.7 MB in the end (delta: -24.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:55,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.59 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 53.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:55,831 INFO L168 Benchmark]: Boogie Preprocessor took 70.75 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 52.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:55,831 INFO L168 Benchmark]: RCFGBuilder took 1058.61 ms. Allocated memory is still 73.4 MB. Free memory was 52.2 MB in the beginning and 52.6 MB in the end (delta: -481.9 kB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:55,835 INFO L168 Benchmark]: TraceAbstraction took 5267.39 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 52.4 MB in the beginning and 64.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:55,835 INFO L168 Benchmark]: Witness Printer took 96.11 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 60.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:55,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.2 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.97 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 31.0 MB in the beginning and 55.7 MB in the end (delta: -24.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.59 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 53.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.75 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 52.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1058.61 ms. Allocated memory is still 73.4 MB. Free memory was 52.2 MB in the beginning and 52.6 MB in the end (delta: -481.9 kB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5267.39 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 52.4 MB in the beginning and 64.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. * Witness Printer took 96.11 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 60.7 MB in the end (delta: 3.4 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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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 [2020-11-28 07:39:55,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-11-28 07:39:55,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - InvariantResult [Line: 15]: Loop Invariant [2020-11-28 07:39:55,871 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,872 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2020-11-28 07:39:55,875 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:39:55,878 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,878 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,879 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,879 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-28 07:39:55,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:39:55,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 197 SDslu, 80 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.7s 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 223 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8650 SizeOfPredicates, 26 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...