./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb906b6dd506785279c111a847f91453236e370a ..................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb906b6dd506785279c111a847f91453236e370a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 21:59:42,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:59:42,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:59:42,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:59:42,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:59:42,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:59:42,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:59:42,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:59:42,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:59:42,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:59:42,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:59:42,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:59:42,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:59:42,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:59:42,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:59:42,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:59:42,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:59:42,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:59:42,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:59:42,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:59:42,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:59:42,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:59:42,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:59:42,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:59:42,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:59:42,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:59:42,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:59:42,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:59:42,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:59:42,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:59:42,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:59:42,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:59:42,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:59:42,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:59:42,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:59:42,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:59:42,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:59:42,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:59:42,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:59:43,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:59:43,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:59:43,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:59:43,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:59:43,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:59:43,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:59:43,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:59:43,017 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:59:43,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:59:43,017 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:59:43,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:59:43,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:59:43,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:59:43,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:59:43,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:59:43,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:59:43,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:59:43,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:59:43,019 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:59:43,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:59:43,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:59:43,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:59:43,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:59:43,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:59:43,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:59:43,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:59:43,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:59:43,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:59:43,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:59:43,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:59:43,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:59:43,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb906b6dd506785279c111a847f91453236e370a [2019-11-19 21:59:43,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:59:43,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:59:43,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:59:43,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:59:43,203 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:59:43,204 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-19 21:59:43,256 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/dc4910aa0/64dc0b37b0c44bea815dd46fb2cecf9f/FLAG17f1906eb [2019-11-19 21:59:43,635 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:59:43,636 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-19 21:59:43,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/dc4910aa0/64dc0b37b0c44bea815dd46fb2cecf9f/FLAG17f1906eb [2019-11-19 21:59:43,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/dc4910aa0/64dc0b37b0c44bea815dd46fb2cecf9f [2019-11-19 21:59:43,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:59:43,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:59:43,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:59:43,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:59:43,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:59:43,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:43,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed8d722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43, skipping insertion in model container [2019-11-19 21:59:43,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:43,672 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:59:43,688 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:59:43,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:59:43,923 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:59:43,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:59:43,969 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:59:43,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43 WrapperNode [2019-11-19 21:59:43,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:59:43,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:59:43,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:59:43,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:59:43,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:43,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:59:44,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:59:44,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:59:44,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:59:44,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... [2019-11-19 21:59:44,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:59:44,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:59:44,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:59:44,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:59:44,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:59:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 21:59:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 21:59:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 21:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:59:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 21:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:59:44,374 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:59:44,374 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-19 21:59:44,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:59:44 BoogieIcfgContainer [2019-11-19 21:59:44,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:59:44,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:59:44,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:59:44,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:59:44,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:59:43" (1/3) ... [2019-11-19 21:59:44,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c8d4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:59:44, skipping insertion in model container [2019-11-19 21:59:44,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:43" (2/3) ... [2019-11-19 21:59:44,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c8d4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:59:44, skipping insertion in model container [2019-11-19 21:59:44,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:59:44" (3/3) ... [2019-11-19 21:59:44,383 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2019-11-19 21:59:44,395 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:59:44,401 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:59:44,410 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:59:44,440 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:59:44,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:59:44,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:59:44,441 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:59:44,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:59:44,441 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:59:44,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:59:44,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:59:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-19 21:59:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 21:59:44,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:59:44,462 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:59:44,463 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:59:44,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:59:44,469 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-19 21:59:44,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:59:44,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120176468] [2019-11-19 21:59:44,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:59:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:59:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:44,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120176468] [2019-11-19 21:59:44,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:59:44,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:59:44,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824990222] [2019-11-19 21:59:44,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:59:44,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:59:44,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:59:44,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:59:44,601 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-19 21:59:44,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:59:44,619 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-19 21:59:44,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:59:44,621 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 21:59:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:59:44,630 INFO L225 Difference]: With dead ends: 58 [2019-11-19 21:59:44,630 INFO L226 Difference]: Without dead ends: 27 [2019-11-19 21:59:44,633 INFO L630 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 [2019-11-19 21:59:44,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-19 21:59:44,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-19 21:59:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-19 21:59:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-19 21:59:44,661 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-19 21:59:44,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:59:44,662 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-19 21:59:44,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:59:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-19 21:59:44,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 21:59:44,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:59:44,663 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:59:44,664 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:59:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:59:44,664 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-19 21:59:44,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:59:44,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691930066] [2019-11-19 21:59:44,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:59:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:59:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:59:44,766 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:59:44,766 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:59:44,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:59:44 BoogieIcfgContainer [2019-11-19 21:59:44,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:59:44,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:59:44,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:59:44,791 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:59:44,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:59:44" (3/4) ... [2019-11-19 21:59:44,795 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:59:44,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:59:44,797 INFO L168 Benchmark]: Toolchain (without parser) took 1139.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -127.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:44,798 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:59:44,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:44,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:59:44,800 INFO L168 Benchmark]: Boogie Preprocessor took 53.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:44,800 INFO L168 Benchmark]: RCFGBuilder took 318.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:44,801 INFO L168 Benchmark]: TraceAbstraction took 414.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:44,801 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:59:44,805 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 414.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someUnaryFLOAToperation at line 76, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L76] float x = -0.0f; [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [huge_ceil=1000000000000000000000000000000] [L77] float res = ceil_float(x); [L80] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000] [L80] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 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=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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, 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 0.1.24-678e011 [2019-11-19 21:59:46,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:59:46,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:59:46,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:59:46,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:59:46,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:59:46,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:59:46,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:59:46,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:59:46,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:59:46,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:59:46,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:59:46,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:59:46,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:59:46,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:59:46,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:59:46,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:59:46,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:59:46,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:59:46,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:59:46,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:59:46,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:59:46,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:59:46,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:59:46,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:59:46,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:59:46,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:59:46,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:59:46,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:59:46,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:59:46,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:59:46,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:59:46,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:59:46,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:59:46,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:59:46,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:59:46,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:59:46,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:59:46,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:59:46,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:59:46,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:59:46,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 21:59:46,762 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:59:46,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:59:46,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:59:46,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:59:46,764 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:59:46,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:59:46,765 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:59:46,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:59:46,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:59:46,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:59:46,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:59:46,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:59:46,766 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 21:59:46,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 21:59:46,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:59:46,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:59:46,767 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:59:46,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:59:46,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:59:46,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:59:46,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:59:46,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:59:46,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:59:46,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:59:46,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:59:46,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:59:46,770 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 21:59:46,770 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 21:59:46,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:59:46,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:59:46,771 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb906b6dd506785279c111a847f91453236e370a [2019-11-19 21:59:47,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:59:47,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:59:47,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:59:47,050 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:59:47,051 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:59:47,052 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-19 21:59:47,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/60e77b824/d3720f39f04e45bfaa8f92631dad273e/FLAG3b2809ad9 [2019-11-19 21:59:47,502 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:59:47,504 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-19 21:59:47,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/60e77b824/d3720f39f04e45bfaa8f92631dad273e/FLAG3b2809ad9 [2019-11-19 21:59:47,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/data/60e77b824/d3720f39f04e45bfaa8f92631dad273e [2019-11-19 21:59:47,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:59:47,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:59:47,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:59:47,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:59:47,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:59:47,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:59:47" (1/1) ... [2019-11-19 21:59:47,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62daa980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:47, skipping insertion in model container [2019-11-19 21:59:47,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:59:47" (1/1) ... [2019-11-19 21:59:47,889 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:59:47,909 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:59:48,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:59:48,115 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:59:48,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:59:48,181 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:59:48,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48 WrapperNode [2019-11-19 21:59:48,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:59:48,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:59:48,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:59:48,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:59:48,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:59:48,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:59:48,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:59:48,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:59:48,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... [2019-11-19 21:59:48,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:59:48,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:59:48,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:59:48,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:59:48,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:59:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 21:59:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:59:48,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:59:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 21:59:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:59:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 21:59:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 21:59:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:59:48,960 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:59:48,961 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-19 21:59:48,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:59:48 BoogieIcfgContainer [2019-11-19 21:59:48,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:59:48,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:59:48,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:59:48,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:59:48,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:59:47" (1/3) ... [2019-11-19 21:59:48,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c366825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:59:48, skipping insertion in model container [2019-11-19 21:59:48,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:59:48" (2/3) ... [2019-11-19 21:59:48,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c366825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:59:48, skipping insertion in model container [2019-11-19 21:59:48,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:59:48" (3/3) ... [2019-11-19 21:59:48,968 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2019-11-19 21:59:48,976 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:59:48,983 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:59:48,993 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:59:49,014 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:59:49,015 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:59:49,015 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:59:49,015 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:59:49,015 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:59:49,015 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:59:49,015 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:59:49,016 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:59:49,026 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-19 21:59:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 21:59:49,031 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:59:49,032 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:59:49,032 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:59:49,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:59:49,036 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-19 21:59:49,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:59:49,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658256111] [2019-11-19 21:59:49,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-19 21:59:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:59:49,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 21:59:49,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:59:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:49,125 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:59:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:49,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658256111] [2019-11-19 21:59:49,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:59:49,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 21:59:49,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679196597] [2019-11-19 21:59:49,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:59:49,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:59:49,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:59:49,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:59:49,150 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-19 21:59:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:59:49,167 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-19 21:59:49,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:59:49,169 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 21:59:49,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:59:49,178 INFO L225 Difference]: With dead ends: 58 [2019-11-19 21:59:49,179 INFO L226 Difference]: Without dead ends: 27 [2019-11-19 21:59:49,182 INFO L630 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 [2019-11-19 21:59:49,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-19 21:59:49,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-19 21:59:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-19 21:59:49,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-19 21:59:49,213 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-19 21:59:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:59:49,214 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-19 21:59:49,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:59:49,214 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-19 21:59:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 21:59:49,215 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:59:49,215 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:59:49,427 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 21:59:49,428 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:59:49,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:59:49,428 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-19 21:59:49,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:59:49,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216990527] [2019-11-19 21:59:49,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-19 21:59:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:59:49,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-19 21:59:49,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:59:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:49,587 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:59:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:49,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216990527] [2019-11-19 21:59:49,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:59:49,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 21:59:49,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240116816] [2019-11-19 21:59:49,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 21:59:49,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:59:49,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 21:59:49,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 21:59:49,692 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2019-11-19 21:59:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:59:49,847 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2019-11-19 21:59:49,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 21:59:49,848 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-19 21:59:49,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:59:49,849 INFO L225 Difference]: With dead ends: 39 [2019-11-19 21:59:49,849 INFO L226 Difference]: Without dead ends: 21 [2019-11-19 21:59:49,850 INFO L630 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 [2019-11-19 21:59:49,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-19 21:59:49,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-19 21:59:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 21:59:49,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-19 21:59:49,855 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2019-11-19 21:59:49,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:59:49,855 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-19 21:59:49,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 21:59:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-19 21:59:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 21:59:49,856 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:59:49,856 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:59:50,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 21:59:50,061 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:59:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:59:50,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2019-11-19 21:59:50,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:59:50,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760324055] [2019-11-19 21:59:50,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-19 21:59:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:59:50,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 21:59:50,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:59:50,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:50,199 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:59:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:50,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760324055] [2019-11-19 21:59:50,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:59:50,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-19 21:59:50,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759012686] [2019-11-19 21:59:50,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 21:59:50,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:59:50,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 21:59:50,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 21:59:50,602 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2019-11-19 21:59:50,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:59:50,789 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-19 21:59:50,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 21:59:50,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-19 21:59:50,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:59:50,794 INFO L225 Difference]: With dead ends: 33 [2019-11-19 21:59:50,794 INFO L226 Difference]: Without dead ends: 21 [2019-11-19 21:59:50,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 21:59:50,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-19 21:59:50,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-19 21:59:50,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 21:59:50,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-11-19 21:59:50,799 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2019-11-19 21:59:50,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:59:50,800 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-11-19 21:59:50,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 21:59:50,800 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-11-19 21:59:50,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 21:59:50,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:59:50,801 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:59:51,010 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 21:59:51,010 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:59:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:59:51,010 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2019-11-19 21:59:51,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:59:51,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842427495] [2019-11-19 21:59:51,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/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 [2019-11-19 21:59:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:59:51,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 21:59:51,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:59:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:51,134 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:59:51,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:59:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:51,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842427495] [2019-11-19 21:59:51,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:59:51,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-19 21:59:51,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180806965] [2019-11-19 21:59:51,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-19 21:59:51,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:59:51,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-19 21:59:51,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-19 21:59:51,199 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2019-11-19 21:59:51,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:59:51,355 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-19 21:59:51,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 21:59:51,356 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-11-19 21:59:51,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:59:51,357 INFO L225 Difference]: With dead ends: 24 [2019-11-19 21:59:51,357 INFO L226 Difference]: Without dead ends: 21 [2019-11-19 21:59:51,357 INFO L630 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 [2019-11-19 21:59:51,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-19 21:59:51,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-19 21:59:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 21:59:51,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-11-19 21:59:51,364 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2019-11-19 21:59:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:59:51,364 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-11-19 21:59:51,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-19 21:59:51,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-11-19 21:59:51,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-19 21:59:51,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:59:51,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:59:51,586 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-19 21:59:51,586 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:59:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:59:51,586 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2019-11-19 21:59:51,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:59:51,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178642323] [2019-11-19 21:59:51,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/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 [2019-11-19 21:59:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:59:51,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-19 21:59:51,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:59:51,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:59:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:51,795 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:59:51,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:59:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:59:52,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178642323] [2019-11-19 21:59:52,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:59:52,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2019-11-19 21:59:52,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444826059] [2019-11-19 21:59:52,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-19 21:59:52,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:59:52,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-19 21:59:52,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-11-19 21:59:52,045 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2019-11-19 21:59:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:59:52,353 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-11-19 21:59:52,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 21:59:52,354 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2019-11-19 21:59:52,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:59:52,354 INFO L225 Difference]: With dead ends: 21 [2019-11-19 21:59:52,354 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 21:59:52,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2019-11-19 21:59:52,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 21:59:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 21:59:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 21:59:52,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 21:59:52,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-19 21:59:52,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:59:52,357 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 21:59:52,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-19 21:59:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 21:59:52,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 21:59:52,558 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-19 21:59:52,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 21:59:52,802 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-11-19 21:59:52,891 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2019-11-19 21:59:52,891 INFO L447 ceAbstractionStarter]: At program point L85(lines 68 86) the Hoare annotation is: true [2019-11-19 21:59:52,891 INFO L444 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2019-11-19 21:59:52,891 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2019-11-19 21:59:52,891 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2019-11-19 21:59:52,891 INFO L444 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2019-11-19 21:59:52,892 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2019-11-19 21:59:52,892 INFO L440 ceAbstractionStarter]: At program point L65(lines 56 66) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24))) (.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) (= .cse0 ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short8| (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))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x .cse1) (= (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) (= (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)) .cse1) (= .cse0 ULTIMATE.start_main_~res~0))) [2019-11-19 21:59:52,892 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 21:59:52,892 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 21:59:52,892 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 21:59:52,892 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-19 21:59:52,893 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2019-11-19 21:59:52,893 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2019-11-19 21:59:52,893 INFO L440 ceAbstractionStarter]: At program point L53(lines 13 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) |ULTIMATE.start_ceil_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~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_ceil_float_~x .cse0) (= (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)) .cse0))) [2019-11-19 21:59:52,893 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-19 21:59:52,893 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) (= ULTIMATE.start_ceil_float_~x (fp.neg (_ +zero 8 24)))) [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-19 21:59:52,894 INFO L444 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2019-11-19 21:59:52,895 INFO L440 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24))) (.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) (= .cse0 ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short8| (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_ceil_float_~x .cse1) (= (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)) .cse1) (= .cse0 ULTIMATE.start_main_~res~0))) [2019-11-19 21:59:52,895 INFO L444 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2019-11-19 21:59:52,895 INFO L444 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-19 21:59:52,895 INFO L444 ceAbstractionStarter]: For program point L80-2(lines 80 83) no Hoare annotation was computed. [2019-11-19 21:59:52,895 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2019-11-19 21:59:52,903 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,913 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,913 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,916 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,916 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,919 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,920 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,927 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,928 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,930 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,931 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:52,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,932 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:52,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:59:52 BoogieIcfgContainer [2019-11-19 21:59:52,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:59:52,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:59:52,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:59:52,935 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:59:52,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:59:48" (3/4) ... [2019-11-19 21:59:52,938 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 21:59:52,949 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-19 21:59:52,949 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-19 21:59:52,950 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 21:59:52,973 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && (\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()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-19 21:59:52,973 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\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()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2019-11-19 21:59:52,974 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\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()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2019-11-19 21:59:53,004 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0e009ebe-3390-42c9-a2f6-401d1c539f97/bin/uautomizer/witness.graphml [2019-11-19 21:59:53,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:59:53,006 INFO L168 Benchmark]: Toolchain (without parser) took 5132.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 957.8 MB in the beginning and 917.7 MB in the end (delta: 40.1 MB). Peak memory consumption was 201.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:53,006 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:59:53,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 941.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:53,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 941.7 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:53,008 INFO L168 Benchmark]: Boogie Preprocessor took 31.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:59:53,008 INFO L168 Benchmark]: RCFGBuilder took 651.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:53,009 INFO L168 Benchmark]: TraceAbstraction took 3971.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.7 MB in the end (delta: 207.8 MB). Peak memory consumption was 207.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:59:53,009 INFO L168 Benchmark]: Witness Printer took 70.09 ms. Allocated memory is still 1.2 GB. Free memory is still 917.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:59:53,011 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 941.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 941.7 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 651.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3971.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.7 MB in the end (delta: 207.8 MB). Peak memory consumption was 207.8 MB. Max. memory is 11.5 GB. * Witness Printer took 70.09 ms. Allocated memory is still 1.2 GB. Free memory is still 917.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_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 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 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 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[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 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.traceabstraction: - PositiveResult [Line: 81]: 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: 13]: Loop Invariant [2019-11-19 21:59:53,022 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,022 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,022 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,023 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,023 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,023 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,024 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,024 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,025 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,025 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,025 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,025 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] Derived loop invariant: (((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && (\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()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant [2019-11-19 21:59:53,026 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,027 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,027 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,028 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,028 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] Derived loop invariant: ((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\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()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - InvariantResult [Line: 16]: Loop Invariant [2019-11-19 21:59:53,031 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,031 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 59]: Loop Invariant [2019-11-19 21:59:53,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,033 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,033 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,033 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,033 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,034 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,035 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:59:53,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-19 21:59:53,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] Derived loop invariant: ((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\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()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 90 SDtfs, 216 SDslu, 78 SDs, 0 SdLazy, 112 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 203 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8342 SizeOfPredicates, 25 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 34 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...