./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a46db52b19fb11eeacebca884b6de40c52cb082 ............................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a46db52b19fb11eeacebca884b6de40c52cb082 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:55:54,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:54,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:54,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:54,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:54,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:55,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:55,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:55,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:55,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:55,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:55,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:55,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:55,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:55,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:55,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:55,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:55,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:55,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:55,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:55,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:55,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:55,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:55,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:55,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:55,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:55,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:55,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:55,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:55,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:55,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:55,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:55,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:55,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:55,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:55,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:55,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:55,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:55,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:55,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:55,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:55,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:55:55,144 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:55,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:55,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:55,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:55,147 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:55,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:55,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:55,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:55,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:55,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:55,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:55:55,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:55:55,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:55:55,151 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:55,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:55,151 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:55,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:55:55,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:55,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:55,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:55:55,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:55:55,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:55:55,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:55,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:55:55,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:55:55,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:55,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:55:55,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:55:55,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:55,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-11-30 00:55:55,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:55,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:55,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:55,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:55,580 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:55,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 00:55:55,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/1de5936fd/7d405f14b75b45b6983b8be9b6746929/FLAG1d2242aab [2020-11-30 00:55:56,241 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:56,242 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 00:55:56,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/1de5936fd/7d405f14b75b45b6983b8be9b6746929/FLAG1d2242aab [2020-11-30 00:55:56,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/1de5936fd/7d405f14b75b45b6983b8be9b6746929 [2020-11-30 00:55:56,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:56,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:56,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:56,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:56,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:56,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:56" (1/1) ... [2020-11-30 00:55:56,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8b4739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:56, skipping insertion in model container [2020-11-30 00:55:56,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:56" (1/1) ... [2020-11-30 00:55:56,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:56,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:56,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:56,970 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:55:57,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:57,049 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:55:57,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57 WrapperNode [2020-11-30 00:55:57,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:57,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:57,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:55:57,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:55:57,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:57,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:55:57,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:55:57,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:55:57,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... [2020-11-30 00:55:57,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:55:57,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:55:57,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:55:57,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:55:57,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/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 [2020-11-30 00:55:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:55:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:55:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:55:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:55:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:55:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:55:57,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:55:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:55:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:55:57,882 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:55:57,882 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 00:55:57,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:57 BoogieIcfgContainer [2020-11-30 00:55:57,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:55:57,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:55:57,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:55:57,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:55:57,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:55:56" (1/3) ... [2020-11-30 00:55:57,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb330cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:57, skipping insertion in model container [2020-11-30 00:55:57,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:57" (2/3) ... [2020-11-30 00:55:57,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb330cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:57, skipping insertion in model container [2020-11-30 00:55:57,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:57" (3/3) ... [2020-11-30 00:55:57,896 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-11-30 00:55:57,910 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:55:57,916 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:55:57,932 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:55:57,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:55:57,979 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:55:57,979 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:55:57,979 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:55:57,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:55:57,980 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:55:57,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:55:57,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:55:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 00:55:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:55:58,004 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:58,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:58,005 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:58,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:58,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-11-30 00:55:58,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:58,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850770530] [2020-11-30 00:55:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:58,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850770530] [2020-11-30 00:55:58,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:58,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:55:58,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102852038] [2020-11-30 00:55:58,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:55:58,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:58,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:55:58,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:55:58,205 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 00:55:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:58,234 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-30 00:55:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:55:58,236 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 00:55:58,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:58,261 INFO L225 Difference]: With dead ends: 65 [2020-11-30 00:55:58,261 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:55:58,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:55:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:55:58,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 00:55:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 00:55:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-30 00:55:58,322 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-11-30 00:55:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:58,322 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-30 00:55:58,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:55:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-30 00:55:58,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:55:58,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:58,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:58,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:55:58,324 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:58,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-11-30 00:55:58,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:58,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47278856] [2020-11-30 00:55:58,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:58,386 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:58,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:58,476 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:58,477 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:55:58,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:55:58,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:55:58 BoogieIcfgContainer [2020-11-30 00:55:58,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:55:58,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:55:58,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:55:58,527 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:55:58,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:57" (3/4) ... [2020-11-30 00:55:58,531 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:55:58,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:55:58,536 INFO L168 Benchmark]: Toolchain (without parser) took 1921.70 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 54.1 MB in the beginning and 59.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:58,537 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 83.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:58,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.23 ms. Allocated memory is still 83.9 MB. Free memory was 53.9 MB in the beginning and 60.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:58,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.00 ms. Allocated memory is still 83.9 MB. Free memory was 60.5 MB in the beginning and 58.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:58,541 INFO L168 Benchmark]: Boogie Preprocessor took 50.61 ms. Allocated memory is still 83.9 MB. Free memory was 58.7 MB in the beginning and 57.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:58,542 INFO L168 Benchmark]: RCFGBuilder took 704.65 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 57.4 MB in the beginning and 82.9 MB in the end (delta: -25.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:58,543 INFO L168 Benchmark]: TraceAbstraction took 638.66 ms. Allocated memory is still 107.0 MB. Free memory was 82.5 MB in the beginning and 60.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:58,544 INFO L168 Benchmark]: Witness Printer took 4.80 ms. Allocated memory is still 107.0 MB. Free memory was 60.3 MB in the beginning and 59.9 MB in the end (delta: 448.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:58,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 83.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.23 ms. Allocated memory is still 83.9 MB. Free memory was 53.9 MB in the beginning and 60.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.00 ms. Allocated memory is still 83.9 MB. Free memory was 60.5 MB in the beginning and 58.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.61 ms. Allocated memory is still 83.9 MB. Free memory was 58.7 MB in the beginning and 57.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 704.65 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 57.4 MB in the beginning and 82.9 MB in the end (delta: -25.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 638.66 ms. Allocated memory is still 107.0 MB. Free memory was 82.5 MB in the beginning and 60.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.80 ms. Allocated memory is still 107.0 MB. Free memory was 60.3 MB in the beginning and 59.9 MB in the end (delta: 448.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = 0.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L97] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0720.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 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=34occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:56:01,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:56:01,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:56:01,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:56:01,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:56:01,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:56:01,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:56:01,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:56:01,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:56:01,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:56:01,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:56:01,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:56:01,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:56:01,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:56:01,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:56:01,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:56:01,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:56:01,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:56:01,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:56:01,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:56:01,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:56:01,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:56:01,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:56:01,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:56:01,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:56:01,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:56:01,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:56:01,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:56:01,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:56:01,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:56:01,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:56:01,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:56:01,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:56:01,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:56:01,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:56:01,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:56:01,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:56:01,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:56:01,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:56:01,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:56:01,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:56:01,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:56:01,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:56:01,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:56:01,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:56:01,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:56:01,699 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:56:01,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:56:01,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:56:01,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:56:01,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:56:01,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:56:01,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:56:01,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:56:01,707 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:56:01,707 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:56:01,707 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:56:01,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:56:01,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:56:01,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:56:01,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:56:01,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:56:01,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:56:01,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:56:01,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:56:01,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:56:01,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:56:01,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:56:01,710 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:56:01,711 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:56:01,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:56:01,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:56:01,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:56:01,713 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-11-30 00:56:02,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:56:02,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:56:02,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:56:02,230 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:56:02,231 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:56:02,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 00:56:02,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/f65c65f58/4ca9d189308d413c994a52a3a11782fd/FLAGb9195c308 [2020-11-30 00:56:02,918 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:56:02,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 00:56:02,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/f65c65f58/4ca9d189308d413c994a52a3a11782fd/FLAGb9195c308 [2020-11-30 00:56:03,261 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/data/f65c65f58/4ca9d189308d413c994a52a3a11782fd [2020-11-30 00:56:03,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:56:03,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:56:03,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:56:03,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:56:03,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:56:03,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c917b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03, skipping insertion in model container [2020-11-30 00:56:03,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:56:03,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:56:03,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:03,541 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:56:03,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:03,630 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:56:03,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03 WrapperNode [2020-11-30 00:56:03,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:56:03,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:03,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:56:03,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:56:03,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:03,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:56:03,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:56:03,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:56:03,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:56:03,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:56:03,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:56:03,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:56:03,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/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 [2020-11-30 00:56:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:56:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:56:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 00:56:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:56:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:56:03,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:56:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 00:56:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:56:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:56:05,218 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:56:05,218 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 00:56:05,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:05 BoogieIcfgContainer [2020-11-30 00:56:05,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:56:05,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:56:05,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:56:05,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:56:05,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:56:03" (1/3) ... [2020-11-30 00:56:05,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d78ac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:56:05, skipping insertion in model container [2020-11-30 00:56:05,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (2/3) ... [2020-11-30 00:56:05,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d78ac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:56:05, skipping insertion in model container [2020-11-30 00:56:05,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:05" (3/3) ... [2020-11-30 00:56:05,231 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-11-30 00:56:05,245 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:56:05,250 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:56:05,262 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:56:05,290 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:56:05,291 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:56:05,291 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:56:05,291 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:56:05,291 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:56:05,291 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:56:05,292 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:56:05,292 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:56:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 00:56:05,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:56:05,314 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:05,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:05,316 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:05,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:05,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-11-30 00:56:05,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:05,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114462261] [2020-11-30 00:56:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/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 [2020-11-30 00:56:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:05,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:56:05,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:05,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:05,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:05,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114462261] [2020-11-30 00:56:05,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:05,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:56:05,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930659074] [2020-11-30 00:56:05,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:56:05,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:05,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:56:05,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:56:05,653 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 00:56:05,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:05,675 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-30 00:56:05,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:56:05,677 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 00:56:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:05,688 INFO L225 Difference]: With dead ends: 65 [2020-11-30 00:56:05,688 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:56:05,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:56:05,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:56:05,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 00:56:05,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 00:56:05,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-30 00:56:05,733 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-11-30 00:56:05,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:05,734 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-30 00:56:05,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:56:05,734 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-30 00:56:05,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:56:05,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:05,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:05,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:56:05,951 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:05,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:05,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-11-30 00:56:05,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:05,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700359457] [2020-11-30 00:56:05,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/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 [2020-11-30 00:56:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:06,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:56:06,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:06,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:11,995 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 00:56:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:12,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700359457] [2020-11-30 00:56:12,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:12,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 00:56:12,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467818876] [2020-11-30 00:56:12,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:56:12,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:12,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:56:12,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:56:12,041 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-11-30 00:56:12,760 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-30 00:56:13,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:13,495 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-11-30 00:56:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:56:13,496 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-11-30 00:56:13,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:13,497 INFO L225 Difference]: With dead ends: 35 [2020-11-30 00:56:13,497 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:56:13,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:56:13,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:56:13,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 00:56:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 00:56:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-11-30 00:56:13,505 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2020-11-30 00:56:13,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:13,505 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-11-30 00:56:13,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:56:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-11-30 00:56:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:56:13,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:13,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:13,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:56:13,711 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:13,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:13,712 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2020-11-30 00:56:13,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:13,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694526385] [2020-11-30 00:56:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/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 [2020-11-30 00:56:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:13,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:56:13,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:14,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:14,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694526385] [2020-11-30 00:56:14,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:14,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 00:56:14,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489858551] [2020-11-30 00:56:14,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:56:14,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:14,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:56:14,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:56:14,183 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2020-11-30 00:56:14,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:14,367 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-11-30 00:56:14,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:56:14,367 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-11-30 00:56:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:14,367 INFO L225 Difference]: With dead ends: 30 [2020-11-30 00:56:14,368 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:56:14,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:56:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:56:14,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:56:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:56:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:56:14,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-30 00:56:14,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:14,369 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:56:14,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:56:14,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:56:14,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:56:14,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:56:14,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:56:14,714 INFO L277 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2020-11-30 00:56:14,714 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 00:56:14,715 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:56:14,715 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 00:56:14,715 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:56:14,715 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:56:14,715 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-11-30 00:56:14,715 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-11-30 00:56:14,715 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-11-30 00:56:14,716 INFO L274 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-11-30 00:56:14,716 INFO L270 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-11-30 00:56:14,716 INFO L274 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-11-30 00:56:14,716 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-30 00:56:14,716 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-30 00:56:14,716 INFO L274 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-11-30 00:56:14,716 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-30 00:56:14,717 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-30 00:56:14,717 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-11-30 00:56:14,717 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-11-30 00:56:14,717 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:56:14,717 INFO L274 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-11-30 00:56:14,717 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:56:14,718 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-11-30 00:56:14,718 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-11-30 00:56:14,718 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-30 00:56:14,718 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-11-30 00:56:14,718 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-11-30 00:56:14,718 INFO L270 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-11-30 00:56:14,719 INFO L274 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-11-30 00:56:14,719 INFO L274 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-11-30 00:56:14,719 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:56:14,719 INFO L270 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-30 00:56:14,719 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-11-30 00:56:14,719 INFO L274 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-11-30 00:56:14,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,755 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,755 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,760 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,760 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:56:14 BoogieIcfgContainer [2020-11-30 00:56:14,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:56:14,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:56:14,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:56:14,769 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:56:14,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:05" (3/4) ... [2020-11-30 00:56:14,777 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:56:14,792 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 00:56:14,792 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 00:56:14,793 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:56:14,793 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:56:14,826 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-30 00:56:14,828 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-30 00:56:14,891 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9287aabf-7e55-46bb-8cdb-5ecccaadf418/bin/uautomizer/witness.graphml [2020-11-30 00:56:14,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:56:14,895 INFO L168 Benchmark]: Toolchain (without parser) took 11624.13 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.0 MB in the beginning and 26.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:14,896 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 33.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:14,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.24 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 33.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:14,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.85 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 32.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:14,898 INFO L168 Benchmark]: Boogie Preprocessor took 45.02 ms. Allocated memory is still 52.4 MB. Free memory was 32.1 MB in the beginning and 30.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:14,898 INFO L168 Benchmark]: RCFGBuilder took 1487.22 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 30.4 MB in the beginning and 36.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:14,899 INFO L168 Benchmark]: TraceAbstraction took 9543.46 ms. Allocated memory is still 62.9 MB. Free memory was 36.4 MB in the beginning and 30.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:14,899 INFO L168 Benchmark]: Witness Printer took 123.53 ms. Allocated memory is still 62.9 MB. Free memory was 30.2 MB in the beginning and 26.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:14,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 33.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.24 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 33.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.85 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 32.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.02 ms. Allocated memory is still 52.4 MB. Free memory was 32.1 MB in the beginning and 30.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1487.22 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 30.4 MB in the beginning and 36.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9543.46 ms. Allocated memory is still 62.9 MB. Free memory was 36.4 MB in the beginning and 30.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Witness Printer took 123.53 ms. Allocated memory is still 62.9 MB. Free memory was 30.2 MB in the beginning and 26.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-11-30 00:56:14,915 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,916 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,916 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,922 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,926 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-11-30 00:56:14,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,934 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-11-30 00:56:14,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:56:14,947 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:56:14,947 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 52 SDslu, 129 SDs, 0 SdLazy, 52 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 5 QuantifiedInterpolants, 4376 SizeOfPredicates, 17 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...