./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 ........................................................................................................................................................................................................................................................................................................ 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_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:44:36,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:44:36,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:44:36,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:44:36,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:44:36,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:44:36,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:44:36,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:44:36,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:44:36,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:44:36,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:44:36,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:44:36,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:44:36,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:44:36,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:44:36,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:44:36,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:44:36,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:44:36,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:44:36,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:44:36,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:44:36,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:44:36,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:44:36,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:44:36,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:44:36,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:44:36,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:44:36,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:44:36,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:44:36,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:44:36,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:44:36,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:44:36,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:44:36,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:44:36,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:44:36,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:44:36,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:44:36,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:44:36,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:44:36,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:44:36,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:44:36,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:44:36,100 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:44:36,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:44:36,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:44:36,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:44:36,101 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:44:36,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:44:36,102 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:44:36,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:44:36,103 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:44:36,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:44:36,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:44:36,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:44:36,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:44:36,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:44:36,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:44:36,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:44:36,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:44:36,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:44:36,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:44:36,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:44:36,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:44:36,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:44:36,104 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_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-12-07 15:44:36,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:44:36,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:44:36,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:44:36,222 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:44:36,223 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:44:36,223 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-12-07 15:44:36,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/e0df46aa6/18dcdf725cb7479486dc4de5c7289f28/FLAG34df44b73 [2019-12-07 15:44:36,676 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:44:36,677 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-12-07 15:44:36,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/e0df46aa6/18dcdf725cb7479486dc4de5c7289f28/FLAG34df44b73 [2019-12-07 15:44:36,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/e0df46aa6/18dcdf725cb7479486dc4de5c7289f28 [2019-12-07 15:44:36,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:44:36,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:44:36,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:44:36,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:44:36,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:44:36,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1e11ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36, skipping insertion in model container [2019-12-07 15:44:36,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:44:36,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:44:36,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:44:36,875 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:44:36,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:44:36,912 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:44:36,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36 WrapperNode [2019-12-07 15:44:36,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:44:36,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:44:36,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:44:36,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:44:36,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:44:36,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:44:36,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:44:36,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:44:36,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... [2019-12-07 15:44:36,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:44:36,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:44:36,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:44:36,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:44:36,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 [2019-12-07 15:44:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:44:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:44:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:44:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:44:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:44:37,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:44:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:44:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 15:44:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:44:37,206 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:44:37,206 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 15:44:37,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:44:37 BoogieIcfgContainer [2019-12-07 15:44:37,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:44:37,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:44:37,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:44:37,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:44:37,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:44:36" (1/3) ... [2019-12-07 15:44:37,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cff6439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:44:37, skipping insertion in model container [2019-12-07 15:44:37,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:36" (2/3) ... [2019-12-07 15:44:37,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cff6439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:44:37, skipping insertion in model container [2019-12-07 15:44:37,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:44:37" (3/3) ... [2019-12-07 15:44:37,211 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-12-07 15:44:37,217 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:44:37,221 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:44:37,229 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:44:37,245 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:44:37,245 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:44:37,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:44:37,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:44:37,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:44:37,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:44:37,245 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:44:37,245 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:44:37,255 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-12-07 15:44:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:44:37,258 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:44:37,259 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:44:37,259 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:44:37,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:44:37,263 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-12-07 15:44:37,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:44:37,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571126397] [2019-12-07 15:44:37,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:44:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:44:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:44:37,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571126397] [2019-12-07 15:44:37,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:44:37,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:44:37,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732762428] [2019-12-07 15:44:37,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:44:37,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:44:37,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:44:37,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:44:37,371 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-12-07 15:44:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:44:37,383 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-12-07 15:44:37,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:44:37,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 15:44:37,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:44:37,391 INFO L225 Difference]: With dead ends: 70 [2019-12-07 15:44:37,391 INFO L226 Difference]: Without dead ends: 33 [2019-12-07 15:44:37,393 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 [2019-12-07 15:44:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-07 15:44:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-07 15:44:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 15:44:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-12-07 15:44:37,416 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-12-07 15:44:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:44:37,416 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-12-07 15:44:37,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:44:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-12-07 15:44:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:44:37,417 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:44:37,417 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:44:37,417 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:44:37,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:44:37,417 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-12-07 15:44:37,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:44:37,417 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083815825] [2019-12-07 15:44:37,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:44:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:44:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:44:37,478 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:44:37,479 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:44:37,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:44:37 BoogieIcfgContainer [2019-12-07 15:44:37,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:44:37,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:44:37,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:44:37,502 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:44:37,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:44:37" (3/4) ... [2019-12-07 15:44:37,504 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:44:37,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:44:37,506 INFO L168 Benchmark]: Toolchain (without parser) took 811.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -90.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:44:37,506 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:44:37,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:44:37,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.85 ms. Allocated memory is still 1.1 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. [2019-12-07 15:44:37,507 INFO L168 Benchmark]: Boogie Preprocessor took 21.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:44:37,508 INFO L168 Benchmark]: RCFGBuilder took 239.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:44:37,508 INFO L168 Benchmark]: TraceAbstraction took 293.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:44:37,508 INFO L168 Benchmark]: Witness Printer took 2.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:44:37,510 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.85 ms. Allocated memory is still 1.1 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. * Boogie Preprocessor took 21.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 239.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 293.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = -0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 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=36occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.25-f470102 [2019-12-07 15:44:38,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:44:38,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:44:38,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-07 15:44:38,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:44:38,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:44:38,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:44:38,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:44:38,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:44:38,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:44:38,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:44:38,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:44:38,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:44:38,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:44:38,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:44:38,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 15:44:38,932 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:44:38,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:44:38,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:44:38,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:44:38,934 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:44:38,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:44:38,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:44:38,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:44:38,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:44:38,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:44:38,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:44:38,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:44:38,935 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:44:38,935 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:44:38,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:44:38,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:44:38,935 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:44:38,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:44:38,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:44:38,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:44:38,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:44:38,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:44:38,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:44:38,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:44:38,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:44:38,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:44:38,937 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:44:38,937 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:44:38,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:44:38,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:44:38,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:44:38,937 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_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-12-07 15:44:39,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:44:39,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:44:39,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:44:39,113 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:44:39,113 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:44:39,114 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-12-07 15:44:39,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/d887f93d8/754b23ed49224a3b9deb46fe2718c773/FLAGe4dd72cf1 [2019-12-07 15:44:39,479 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:44:39,480 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-12-07 15:44:39,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/d887f93d8/754b23ed49224a3b9deb46fe2718c773/FLAGe4dd72cf1 [2019-12-07 15:44:39,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/data/d887f93d8/754b23ed49224a3b9deb46fe2718c773 [2019-12-07 15:44:39,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:44:39,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:44:39,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:44:39,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:44:39,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:44:39,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76eb2b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39, skipping insertion in model container [2019-12-07 15:44:39,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:44:39,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:44:39,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:44:39,650 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:44:39,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:44:39,736 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:44:39,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39 WrapperNode [2019-12-07 15:44:39,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:44:39,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:44:39,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:44:39,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:44:39,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:44:39,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:44:39,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:44:39,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:44:39,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... [2019-12-07 15:44:39,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:44:39,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:44:39,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:44:39,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:44:39,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 [2019-12-07 15:44:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-12-07 15:44:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:44:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 15:44:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:44:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:44:39,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:44:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 15:44:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:44:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:44:47,853 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:44:47,853 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 15:44:47,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:44:47 BoogieIcfgContainer [2019-12-07 15:44:47,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:44:47,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:44:47,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:44:47,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:44:47,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:44:39" (1/3) ... [2019-12-07 15:44:47,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea3b7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:44:47, skipping insertion in model container [2019-12-07 15:44:47,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:44:39" (2/3) ... [2019-12-07 15:44:47,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea3b7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:44:47, skipping insertion in model container [2019-12-07 15:44:47,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:44:47" (3/3) ... [2019-12-07 15:44:47,858 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-12-07 15:44:47,865 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:44:47,869 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:44:47,876 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:44:47,891 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:44:47,891 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:44:47,891 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:44:47,891 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:44:47,891 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:44:47,891 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:44:47,891 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:44:47,892 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:44:47,901 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-12-07 15:44:47,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:44:47,905 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:44:47,906 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:44:47,906 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:44:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:44:47,909 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-12-07 15:44:47,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:44:47,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178180563] [2019-12-07 15:44:47,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 [2019-12-07 15:44:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:44:48,338 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:44:48,342 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:44:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:44:48,353 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:44:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:44:48,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178180563] [2019-12-07 15:44:48,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:44:48,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:44:48,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595225441] [2019-12-07 15:44:48,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:44:48,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:44:48,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:44:48,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:44:48,371 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-12-07 15:44:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:44:48,385 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-12-07 15:44:48,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:44:48,386 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 15:44:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:44:48,394 INFO L225 Difference]: With dead ends: 70 [2019-12-07 15:44:48,394 INFO L226 Difference]: Without dead ends: 33 [2019-12-07 15:44:48,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:44:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-07 15:44:48,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-07 15:44:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 15:44:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-12-07 15:44:48,420 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-12-07 15:44:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:44:48,420 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-12-07 15:44:48,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:44:48,421 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-12-07 15:44:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:44:48,421 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:44:48,421 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:44:48,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:44:48,622 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:44:48,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:44:48,623 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-12-07 15:44:48,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:44:48,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574727411] [2019-12-07 15:44:48,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 [2019-12-07 15:44:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:44:49,092 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:44:49,094 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:44:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:44:49,142 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:44:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:44:49,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574727411] [2019-12-07 15:44:49,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:44:49,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 15:44:49,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795003683] [2019-12-07 15:44:49,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:44:49,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:44:49,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:44:49,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:44:49,204 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2019-12-07 15:44:53,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:44:53,820 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2019-12-07 15:44:53,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:44:53,922 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-12-07 15:44:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:44:53,923 INFO L225 Difference]: With dead ends: 50 [2019-12-07 15:44:53,923 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 15:44:53,924 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:44:53,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 15:44:53,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 15:44:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 15:44:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-12-07 15:44:53,929 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-12-07 15:44:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:44:53,929 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-12-07 15:44:53,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:44:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-12-07 15:44:53,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 15:44:53,930 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:44:53,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:44:54,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:44:54,132 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:44:54,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:44:54,133 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2019-12-07 15:44:54,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:44:54,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109866080] [2019-12-07 15:44:54,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 [2019-12-07 15:44:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:44:54,645 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:44:54,646 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:44:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:44:54,732 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:44:55,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:44:55,341 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109866080] [2019-12-07 15:44:55,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:44:55,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-12-07 15:44:55,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749318169] [2019-12-07 15:44:55,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:44:55,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:44:55,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:44:55,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:44:55,343 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2019-12-07 15:45:06,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:45:06,953 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-12-07 15:45:06,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:45:06,953 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-12-07 15:45:06,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:45:06,954 INFO L225 Difference]: With dead ends: 33 [2019-12-07 15:45:06,954 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 15:45:06,955 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-12-07 15:45:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 15:45:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 15:45:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 15:45:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-12-07 15:45:06,958 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2019-12-07 15:45:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:45:06,958 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-12-07 15:45:06,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:45:06,958 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-12-07 15:45:06,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:45:06,959 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:45:06,959 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:45:07,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:45:07,160 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:45:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:45:07,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2019-12-07 15:45:07,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:45:07,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600668002] [2019-12-07 15:45:07,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/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 [2019-12-07 15:45:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:45:08,300 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:45:08,302 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:45:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:45:08,360 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:45:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:45:08,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600668002] [2019-12-07 15:45:08,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:45:08,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 15:45:08,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510243355] [2019-12-07 15:45:08,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:45:08,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:45:08,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:45:08,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:45:08,946 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2019-12-07 15:45:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:45:09,032 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-12-07 15:45:09,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:45:09,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-12-07 15:45:09,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:45:09,034 INFO L225 Difference]: With dead ends: 29 [2019-12-07 15:45:09,034 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:45:09,034 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:45:09,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:45:09,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:45:09,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:45:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:45:09,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-12-07 15:45:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:45:09,035 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:45:09,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:45:09,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:45:09,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:45:09,236 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:45:09,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:45:09,363 INFO L249 CegarLoopResult]: At program point L126(lines 111 127) the Hoare annotation is: true [2019-12-07 15:45:09,363 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 15:45:09,363 INFO L246 CegarLoopResult]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-12-07 15:45:09,363 INFO L246 CegarLoopResult]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-12-07 15:45:09,364 INFO L246 CegarLoopResult]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-12-07 15:45:09,365 INFO L246 CegarLoopResult]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-12-07 15:45:09,365 INFO L246 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-12-07 15:45:09,365 INFO L246 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-12-07 15:45:09,365 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-12-07 15:45:09,365 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-12-07 15:45:09,365 INFO L246 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2019-12-07 15:45:09,365 INFO L246 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-12-07 15:45:09,366 INFO L246 CegarLoopResult]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-12-07 15:45:09,366 INFO L246 CegarLoopResult]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-12-07 15:45:09,366 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 15:45:09,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-12-07 15:45:09,366 INFO L246 CegarLoopResult]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-12-07 15:45:09,366 INFO L246 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-12-07 15:45:09,367 INFO L242 CegarLoopResult]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (.cse1 (fp.neg (_ +zero 8 24)))) (and (= ~one_exp~0 .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) .cse1) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add currentRoundingMode .cse0 .cse1)) (= ULTIMATE.start___ieee754_expf_~x .cse1) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start___ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_expf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_expf_~sx~0)))))) [2019-12-07 15:45:09,367 INFO L246 CegarLoopResult]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-12-07 15:45:09,367 INFO L242 CegarLoopResult]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_exp~0) (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 15:45:09,367 INFO L246 CegarLoopResult]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-12-07 15:45:09,367 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:45:09,367 INFO L246 CegarLoopResult]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-12-07 15:45:09,368 INFO L246 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-12-07 15:45:09,368 INFO L246 CegarLoopResult]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-12-07 15:45:09,368 INFO L246 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-12-07 15:45:09,368 INFO L246 CegarLoopResult]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-12-07 15:45:09,368 INFO L242 CegarLoopResult]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-12-07 15:45:09,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,381 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,381 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,386 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,386 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,389 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,391 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:45:09 BoogieIcfgContainer [2019-12-07 15:45:09,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:45:09,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:45:09,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:45:09,395 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:45:09,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:44:47" (3/4) ... [2019-12-07 15:45:09,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:45:09,406 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-12-07 15:45:09,406 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 15:45:09,406 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:45:09,425 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) [2019-12-07 15:45:09,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3adf97a8-ed8e-467c-84f4-c5bff8d1609e/bin/uautomizer/witness.graphml [2019-12-07 15:45:09,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:45:09,455 INFO L168 Benchmark]: Toolchain (without parser) took 29958.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 952.4 MB in the beginning and 894.7 MB in the end (delta: 57.7 MB). Peak memory consumption was 175.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:45:09,455 INFO L168 Benchmark]: CDTParser took 0.14 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. [2019-12-07 15:45:09,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:45:09,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:45:09,456 INFO L168 Benchmark]: Boogie Preprocessor took 31.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:45:09,456 INFO L168 Benchmark]: RCFGBuilder took 8052.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:45:09,456 INFO L168 Benchmark]: TraceAbstraction took 21539.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 909.5 MB in the end (delta: 152.8 MB). Peak memory consumption was 152.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:45:09,457 INFO L168 Benchmark]: Witness Printer took 59.10 ms. Allocated memory is still 1.1 GB. Free memory was 902.1 MB in the beginning and 894.7 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:45:09,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 240.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8052.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21539.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 909.5 MB in the end (delta: 152.8 MB). Peak memory consumption was 152.8 MB. Max. memory is 11.5 GB. * Witness Printer took 59.10 ms. Allocated memory is still 1.1 GB. Free memory was 902.1 MB in the beginning and 894.7 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-12-07 15:45:09,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 15:45:09,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) - InvariantResult [Line: 41]: Loop Invariant [2019-12-07 15:45:09,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:45:09,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:45:09,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_exp) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 21.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 100 SDtfs, 135 SDslu, 103 SDs, 0 SdLazy, 67 SolverSat, 5 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 15.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 78 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9890 SizeOfPredicates, 19 NumberOfNonLiveVariables, 257 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...