./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.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_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/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 b63437a4b9cab392a78c715a8db6f3cff5d71cf5 ........................................................................................................................................................................................................................................................................................ 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_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/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 b63437a4b9cab392a78c715a8db6f3cff5d71cf5 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:15:37,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:15:37,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:15:37,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:15:37,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:15:37,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:15:37,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:15:37,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:15:37,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:15:37,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:15:37,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:15:37,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:15:37,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:15:37,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:15:37,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:15:37,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:15:37,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:15:37,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:15:37,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:15:38,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:15:38,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:15:38,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:15:38,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:15:38,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:15:38,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:15:38,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:15:38,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:15:38,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:15:38,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:15:38,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:15:38,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:15:38,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:15:38,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:15:38,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:15:38,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:15:38,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:15:38,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:15:38,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:15:38,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:15:38,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:15:38,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:15:38,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:15:38,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:15:38,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:15:38,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:15:38,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:15:38,103 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:15:38,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:15:38,104 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:15:38,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:15:38,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:15:38,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:15:38,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:15:38,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:15:38,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:15:38,106 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:15:38,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:15:38,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:15:38,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:15:38,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:15:38,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:15:38,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:15:38,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:15:38,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:15:38,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:15:38,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:15:38,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:15:38,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:15:38,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:15:38,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:15:38,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:15:38,112 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_04a68572-12e9-4b83-a59b-88be92c9776e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-11-29 19:15:38,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:15:38,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:15:38,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:15:38,551 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:15:38,552 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:15:38,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-29 19:15:38,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/7f0c09858/62ed58e0d9fe4f53a3d27c7e3455a947/FLAGb1fd4009f [2020-11-29 19:15:39,459 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:15:39,463 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-29 19:15:39,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/7f0c09858/62ed58e0d9fe4f53a3d27c7e3455a947/FLAGb1fd4009f [2020-11-29 19:15:39,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/7f0c09858/62ed58e0d9fe4f53a3d27c7e3455a947 [2020-11-29 19:15:39,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:15:39,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:15:39,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:39,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:15:39,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:15:39,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:39" (1/1) ... [2020-11-29 19:15:39,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33392d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:39, skipping insertion in model container [2020-11-29 19:15:39,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:39" (1/1) ... [2020-11-29 19:15:39,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:15:39,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:15:40,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:40,193 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:15:40,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:40,286 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:15:40,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40 WrapperNode [2020-11-29 19:15:40,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:40,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:40,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:15:40,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:15:40,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:40,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:15:40,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:15:40,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:15:40,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... [2020-11-29 19:15:40,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:15:40,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:15:40,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:15:40,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:15:40,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/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 [2020-11-29 19:15:40,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:15:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:15:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 19:15:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:15:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 19:15:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:15:40,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:15:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:15:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:15:41,241 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:15:41,241 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 19:15:41,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:41 BoogieIcfgContainer [2020-11-29 19:15:41,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:15:41,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:15:41,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:15:41,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:15:41,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:15:39" (1/3) ... [2020-11-29 19:15:41,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a65e8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:15:41, skipping insertion in model container [2020-11-29 19:15:41,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:40" (2/3) ... [2020-11-29 19:15:41,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a65e8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:15:41, skipping insertion in model container [2020-11-29 19:15:41,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:41" (3/3) ... [2020-11-29 19:15:41,260 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-11-29 19:15:41,277 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:15:41,284 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:15:41,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:15:41,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:15:41,361 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:15:41,361 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:15:41,361 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:15:41,362 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:15:41,362 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:15:41,362 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:15:41,363 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:15:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-29 19:15:41,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:15:41,395 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:41,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:15:41,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:41,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:41,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-11-29 19:15:41,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:15:41,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656211652] [2020-11-29 19:15:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:15:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:41,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656211652] [2020-11-29 19:15:41,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:41,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:15:41,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600049734] [2020-11-29 19:15:41,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:15:41,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:15:41,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:15:41,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:15:41,690 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-29 19:15:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:41,724 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-11-29 19:15:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:15:41,726 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 19:15:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:41,750 INFO L225 Difference]: With dead ends: 49 [2020-11-29 19:15:41,758 INFO L226 Difference]: Without dead ends: 22 [2020-11-29 19:15:41,765 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 [2020-11-29 19:15:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-29 19:15:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-29 19:15:41,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 19:15:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-11-29 19:15:41,817 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-11-29 19:15:41,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:41,818 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-29 19:15:41,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:15:41,819 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-29 19:15:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:15:41,821 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:41,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:15:41,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:15:41,823 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:41,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:41,828 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-11-29 19:15:41,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:15:41,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342629322] [2020-11-29 19:15:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:15:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:15:41,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:15:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:15:42,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:15:42,066 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:15:42,066 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:15:42,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:15:42,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:15:42 BoogieIcfgContainer [2020-11-29 19:15:42,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:15:42,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:15:42,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:15:42,110 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:15:42,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:41" (3/4) ... [2020-11-29 19:15:42,116 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:15:42,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:15:42,120 INFO L168 Benchmark]: Toolchain (without parser) took 2327.04 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 62.8 MB in the beginning and 76.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:42,121 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 92.3 MB. Free memory was 49.5 MB in the beginning and 49.5 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:15:42,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.77 ms. Allocated memory is still 92.3 MB. Free memory was 62.6 MB in the beginning and 69.5 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:42,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.28 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 67.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:42,125 INFO L168 Benchmark]: Boogie Preprocessor took 78.14 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 66.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:42,126 INFO L168 Benchmark]: RCFGBuilder took 789.02 ms. Allocated memory is still 92.3 MB. Free memory was 66.3 MB in the beginning and 49.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:42,127 INFO L168 Benchmark]: TraceAbstraction took 859.58 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 48.8 MB in the beginning and 77.3 MB in the end (delta: -28.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:15:42,128 INFO L168 Benchmark]: Witness Printer took 6.68 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 76.8 MB in the end (delta: 536.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:15:42,134 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 92.3 MB. Free memory was 49.5 MB in the beginning and 49.5 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 492.77 ms. Allocated memory is still 92.3 MB. Free memory was 62.6 MB in the beginning and 69.5 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.28 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 67.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.14 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 66.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 789.02 ms. Allocated memory is still 92.3 MB. Free memory was 66.3 MB in the beginning and 49.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 859.58 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 48.8 MB in the beginning and 77.3 MB in the end (delta: -28.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.68 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 76.8 MB in the end (delta: 536.5 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 81, overapproximation of bitwiseAnd at line 25, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = -0.0f; [L15] __uint32_t w; [L17] int exponent_less_127; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; [L78] float res = round_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1032b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 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=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 [2020-11-29 19:15:45,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:15:45,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:15:45,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:15:45,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:15:45,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:15:45,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:15:45,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:15:45,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:15:45,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:15:45,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:15:45,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:15:45,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:15:45,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:15:45,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:15:45,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:15:45,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:15:45,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:15:45,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:15:45,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:15:45,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:15:45,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:15:45,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:15:45,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:15:45,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:15:45,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:15:45,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:15:45,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:15:45,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:15:45,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:15:45,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:15:45,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:15:45,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:15:45,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:15:45,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:15:45,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:15:45,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:15:45,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:15:45,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:15:45,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:15:45,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:15:45,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:15:45,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:15:45,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:15:45,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:15:45,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:15:45,834 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:15:45,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:15:45,835 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:15:45,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:15:45,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:15:45,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:15:45,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:15:45,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:15:45,838 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:15:45,839 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:15:45,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:15:45,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:15:45,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:15:45,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:15:45,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:15:45,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:15:45,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:15:45,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:15:45,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:15:45,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:15:45,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:15:45,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:15:45,843 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:15:45,843 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:15:45,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:15:45,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:15:45,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:15:45,844 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_04a68572-12e9-4b83-a59b-88be92c9776e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-11-29 19:15:46,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:15:46,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:15:46,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:15:46,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:15:46,493 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:15:46,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-29 19:15:46,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/c4cd21ff1/8bfa8258b3d84982bed856d9d3ac827b/FLAG0b5193dd3 [2020-11-29 19:15:47,343 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:15:47,346 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-29 19:15:47,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/c4cd21ff1/8bfa8258b3d84982bed856d9d3ac827b/FLAG0b5193dd3 [2020-11-29 19:15:47,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/data/c4cd21ff1/8bfa8258b3d84982bed856d9d3ac827b [2020-11-29 19:15:47,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:15:47,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:15:47,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:47,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:15:47,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:15:47,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:47" (1/1) ... [2020-11-29 19:15:47,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166edb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:47, skipping insertion in model container [2020-11-29 19:15:47,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:47" (1/1) ... [2020-11-29 19:15:47,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:15:47,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:15:47,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:48,015 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:15:48,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:48,077 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:15:48,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48 WrapperNode [2020-11-29 19:15:48,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:48,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:48,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:15:48,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:15:48,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:48,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:15:48,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:15:48,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:15:48,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... [2020-11-29 19:15:48,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:15:48,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:15:48,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:15:48,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:15:48,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/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 [2020-11-29 19:15:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:15:48,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:15:48,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 19:15:48,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 19:15:48,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:15:48,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:15:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 19:15:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 19:15:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:15:49,192 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:15:49,194 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 19:15:49,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:49 BoogieIcfgContainer [2020-11-29 19:15:49,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:15:49,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:15:49,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:15:49,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:15:49,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:15:47" (1/3) ... [2020-11-29 19:15:49,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b8a7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:15:49, skipping insertion in model container [2020-11-29 19:15:49,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:48" (2/3) ... [2020-11-29 19:15:49,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b8a7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:15:49, skipping insertion in model container [2020-11-29 19:15:49,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:49" (3/3) ... [2020-11-29 19:15:49,211 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-11-29 19:15:49,228 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:15:49,235 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:15:49,252 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:15:49,305 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:15:49,305 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:15:49,305 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:15:49,306 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:15:49,306 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:15:49,306 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:15:49,306 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:15:49,307 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:15:49,333 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-29 19:15:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:15:49,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:49,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:15:49,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:49,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:49,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-11-29 19:15:49,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:15:49,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645336371] [2020-11-29 19:15:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/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 [2020-11-29 19:15:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:49,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 19:15:49,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:15:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:49,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:15:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:49,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645336371] [2020-11-29 19:15:49,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:49,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 19:15:49,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927980388] [2020-11-29 19:15:49,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:15:49,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:15:49,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:15:49,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:15:49,647 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-29 19:15:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:49,690 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-11-29 19:15:49,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:15:49,692 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 19:15:49,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:49,705 INFO L225 Difference]: With dead ends: 49 [2020-11-29 19:15:49,706 INFO L226 Difference]: Without dead ends: 22 [2020-11-29 19:15:49,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:15:49,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-29 19:15:49,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-29 19:15:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 19:15:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-11-29 19:15:49,769 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-11-29 19:15:49,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:49,770 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-29 19:15:49,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:15:49,770 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-29 19:15:49,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:15:49,771 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:49,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:15:49,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:15:49,985 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:49,987 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-11-29 19:15:49,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:15:49,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398022979] [2020-11-29 19:15:49,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/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 [2020-11-29 19:15:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:50,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:15:50,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:15:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:50,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:15:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:50,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398022979] [2020-11-29 19:15:50,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:50,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 19:15:50,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465013523] [2020-11-29 19:15:50,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 19:15:50,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:15:50,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 19:15:50,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:15:50,406 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2020-11-29 19:15:50,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:50,585 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-11-29 19:15:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:15:50,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 19:15:50,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:50,587 INFO L225 Difference]: With dead ends: 34 [2020-11-29 19:15:50,588 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 19:15:50,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:15:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 19:15:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 19:15:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 19:15:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-29 19:15:50,596 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-11-29 19:15:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:50,597 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-29 19:15:50,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 19:15:50,597 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-29 19:15:50,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 19:15:50,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:50,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:15:50,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 19:15:50,820 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:50,821 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2020-11-29 19:15:50,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:15:50,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549606697] [2020-11-29 19:15:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/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 [2020-11-29 19:15:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:50,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:15:50,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:15:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:51,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:15:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:51,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549606697] [2020-11-29 19:15:51,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:51,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-29 19:15:51,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900952278] [2020-11-29 19:15:51,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 19:15:51,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:15:51,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 19:15:51,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-29 19:15:51,352 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-11-29 19:15:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:51,693 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-11-29 19:15:51,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:15:51,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-29 19:15:51,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:51,695 INFO L225 Difference]: With dead ends: 23 [2020-11-29 19:15:51,695 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 19:15:51,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-29 19:15:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 19:15:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 19:15:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 19:15:51,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-11-29 19:15:51,731 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2020-11-29 19:15:51,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:51,733 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-11-29 19:15:51,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 19:15:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-11-29 19:15:51,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 19:15:51,736 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:51,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:15:51,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 19:15:51,957 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:51,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:51,958 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2020-11-29 19:15:51,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:15:51,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123412795] [2020-11-29 19:15:51,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 19:15:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:52,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 19:15:52,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:15:52,253 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:15:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:52,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:15:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:15:53,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123412795] [2020-11-29 19:15:53,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:53,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2020-11-29 19:15:53,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743097969] [2020-11-29 19:15:53,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-29 19:15:53,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:15:53,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-29 19:15:53,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-29 19:15:53,037 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2020-11-29 19:15:53,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:53,561 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-11-29 19:15:53,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 19:15:53,564 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2020-11-29 19:15:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:53,564 INFO L225 Difference]: With dead ends: 20 [2020-11-29 19:15:53,565 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:15:53,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-11-29 19:15:53,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:15:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:15:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:15:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:15:53,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-29 19:15:53,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:53,567 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:15:53,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-29 19:15:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:15:53,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:15:53,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 19:15:53,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:15:54,000 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2020-11-29 19:15:54,195 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-11-29 19:15:54,198 INFO L274 CegarLoopResult]: For program point L27(lines 27 48) no Hoare annotation was computed. [2020-11-29 19:15:54,199 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2020-11-29 19:15:54,199 INFO L270 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) |ULTIMATE.start_main_#t~short15|)) [2020-11-29 19:15:54,199 INFO L274 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2020-11-29 19:15:54,200 INFO L274 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-11-29 19:15:54,200 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.neg (_ +zero 8 24))) [2020-11-29 19:15:54,200 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-29 19:15:54,200 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-11-29 19:15:54,200 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-11-29 19:15:54,201 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:15:54,201 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 19:15:54,201 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:15:54,201 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:15:54,201 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:15:54,202 INFO L274 CegarLoopResult]: For program point L28(lines 28 41) no Hoare annotation was computed. [2020-11-29 19:15:54,202 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:15:54,202 INFO L277 CegarLoopResult]: At program point L86(lines 69 87) the Hoare annotation is: true [2020-11-29 19:15:54,202 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-11-29 19:15:54,202 INFO L274 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2020-11-29 19:15:54,203 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-11-29 19:15:54,203 INFO L270 CegarLoopResult]: At program point L66(lines 57 67) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) |ULTIMATE.start_main_#t~short15|)) [2020-11-29 19:15:54,203 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:15:54,204 INFO L270 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2020-11-29 19:15:54,204 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-29 19:15:54,204 INFO L274 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2020-11-29 19:15:54,204 INFO L274 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-11-29 19:15:54,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,214 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,215 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,215 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,225 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,225 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,228 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,228 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,228 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,229 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,230 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,230 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,230 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,232 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,232 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,232 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,233 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:15:54 BoogieIcfgContainer [2020-11-29 19:15:54,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:15:54,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:15:54,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:15:54,239 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:15:54,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:49" (3/4) ... [2020-11-29 19:15:54,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:15:54,259 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 19:15:54,259 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 19:15:54,260 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 19:15:54,260 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:15:54,290 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-29 19:15:54,292 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-29 19:15:54,292 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-29 19:15:54,326 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_04a68572-12e9-4b83-a59b-88be92c9776e/bin/uautomizer/witness.graphml [2020-11-29 19:15:54,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:15:54,328 INFO L168 Benchmark]: Toolchain (without parser) took 6632.47 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.2 MB in the beginning and 55.7 MB in the end (delta: -20.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:54,328 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:15:54,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.03 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 24.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:54,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.07 ms. Allocated memory is still 56.6 MB. Free memory was 24.0 MB in the beginning and 39.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:54,330 INFO L168 Benchmark]: Boogie Preprocessor took 91.91 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 38.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:15:54,331 INFO L168 Benchmark]: RCFGBuilder took 882.34 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 37.7 MB in the beginning and 54.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:54,331 INFO L168 Benchmark]: TraceAbstraction took 5037.36 ms. Allocated memory is still 75.5 MB. Free memory was 54.1 MB in the beginning and 23.3 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:54,332 INFO L168 Benchmark]: Witness Printer took 87.21 ms. Allocated memory is still 75.5 MB. Free memory was 23.3 MB in the beginning and 55.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:54,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 382.03 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 24.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.07 ms. Allocated memory is still 56.6 MB. Free memory was 24.0 MB in the beginning and 39.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.91 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 38.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 882.34 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 37.7 MB in the beginning and 54.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5037.36 ms. Allocated memory is still 75.5 MB. Free memory was 54.1 MB in the beginning and 23.3 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * Witness Printer took 87.21 ms. Allocated memory is still 75.5 MB. Free memory was 23.3 MB in the beginning and 55.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * 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: 60]: Loop Invariant [2020-11-29 19:15:54,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,348 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 14]: Loop Invariant [2020-11-29 19:15:54,349 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,349 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,349 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,349 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,351 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 57]: Loop Invariant [2020-11-29 19:15:54,352 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,352 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,352 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,353 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,359 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,360 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,360 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-29 19:15:54,360 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 158 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 10036 SizeOfPredicates, 25 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...