./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70ee165c745ab937eeca69bc762f66bcb3efe6fa ................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70ee165c745ab937eeca69bc762f66bcb3efe6fa ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:35:15,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:35:15,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:35:15,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:35:15,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:35:15,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:35:15,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:35:15,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:35:15,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:35:15,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:35:15,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:35:15,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:35:15,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:35:15,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:35:15,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:35:15,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:35:15,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:35:15,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:35:15,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:35:15,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:35:15,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:35:15,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:35:15,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:35:15,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:35:15,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:35:15,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:35:15,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:35:15,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:35:15,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:35:15,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:35:15,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:35:15,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:35:15,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:35:15,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:35:15,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:35:15,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:35:15,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:35:15,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:35:15,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:35:15,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:35:15,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:35:15,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:35:15,638 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:35:15,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:35:15,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:35:15,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:35:15,650 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:35:15,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:35:15,650 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:35:15,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:35:15,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:35:15,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:35:15,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:35:15,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:35:15,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:35:15,651 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:35:15,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:35:15,652 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:35:15,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:35:15,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:35:15,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:35:15,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:35:15,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:35:15,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:35:15,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:35:15,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:35:15,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:35:15,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:35:15,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:35:15,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:35:15,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-11-15 22:35:15,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:35:15,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:35:15,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:35:15,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:35:15,704 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:35:15,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-15 22:35:15,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/9469f449a/87cd31388c594b39b578d8022c4ba1a8/FLAGd908aeb47 [2019-11-15 22:35:16,144 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:35:16,145 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-15 22:35:16,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/9469f449a/87cd31388c594b39b578d8022c4ba1a8/FLAGd908aeb47 [2019-11-15 22:35:16,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/9469f449a/87cd31388c594b39b578d8022c4ba1a8 [2019-11-15 22:35:16,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:35:16,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:35:16,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:16,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:35:16,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:35:16,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a2af83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16, skipping insertion in model container [2019-11-15 22:35:16,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,591 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:35:16,606 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:35:16,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:16,814 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:35:16,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:16,852 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:35:16,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16 WrapperNode [2019-11-15 22:35:16,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:16,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:16,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:35:16,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:35:16,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:16,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:35:16,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:35:16,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:35:16,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... [2019-11-15 22:35:16,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:35:16,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:35:16,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:35:16,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:35:16,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:35:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:35:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:35:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:35:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:35:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:35:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:35:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:35:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:35:17,249 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:35:17,249 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 22:35:17,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:17 BoogieIcfgContainer [2019-11-15 22:35:17,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:35:17,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:35:17,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:35:17,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:35:17,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:35:16" (1/3) ... [2019-11-15 22:35:17,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a1e968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:35:17, skipping insertion in model container [2019-11-15 22:35:17,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:16" (2/3) ... [2019-11-15 22:35:17,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a1e968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:35:17, skipping insertion in model container [2019-11-15 22:35:17,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:17" (3/3) ... [2019-11-15 22:35:17,258 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-11-15 22:35:17,266 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:35:17,286 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:35:17,296 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:35:17,320 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:35:17,320 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:35:17,320 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:35:17,320 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:35:17,329 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:35:17,330 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:35:17,330 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:35:17,330 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:35:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-15 22:35:17,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 22:35:17,370 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:17,371 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:17,374 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:17,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:17,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-11-15 22:35:17,386 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:17,386 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617033376] [2019-11-15 22:35:17,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:17,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:17,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:17,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617033376] [2019-11-15 22:35:17,511 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:17,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:35:17,512 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670626389] [2019-11-15 22:35:17,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:35:17,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:35:17,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:35:17,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:35:17,534 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-15 22:35:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:17,553 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-11-15 22:35:17,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:35:17,554 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 22:35:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:17,564 INFO L225 Difference]: With dead ends: 28 [2019-11-15 22:35:17,564 INFO L226 Difference]: Without dead ends: 12 [2019-11-15 22:35:17,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:35:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-15 22:35:17,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-15 22:35:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 22:35:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-15 22:35:17,607 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-11-15 22:35:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:17,608 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-15 22:35:17,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:35:17,609 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-15 22:35:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:35:17,610 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:17,610 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:17,610 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:17,611 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-11-15 22:35:17,611 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:17,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562467137] [2019-11-15 22:35:17,612 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:17,612 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:17,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:17,757 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:17,757 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:35:17,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:35:17 BoogieIcfgContainer [2019-11-15 22:35:17,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:35:17,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:35:17,780 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:35:17,780 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:35:17,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:17" (3/4) ... [2019-11-15 22:35:17,784 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:35:17,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:35:17,787 INFO L168 Benchmark]: Toolchain (without parser) took 1207.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:17,787 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:17,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -218.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:17,788 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:17,789 INFO L168 Benchmark]: Boogie Preprocessor took 37.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:17,790 INFO L168 Benchmark]: RCFGBuilder took 324.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:17,790 INFO L168 Benchmark]: TraceAbstraction took 527.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:17,791 INFO L168 Benchmark]: Witness Printer took 4.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:17,794 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -218.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 324.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 527.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L35] float x = 0.0f / 0.0f; [L15] __uint32_t ix; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; [L23] sf_u.word = (ix & 0x7fffffff) [L24] EXPR sf_u.value [L24] (x) = sf_u.value [L26] return x; [L36] float res = fabs_float(x); [L12] return x != x; [L39] COND TRUE !isnan_float(res) [L40] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 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=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 22:35:19,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:35:19,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:35:19,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:35:19,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:35:19,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:35:19,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:35:19,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:35:19,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:35:19,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:35:19,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:35:19,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:35:19,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:35:19,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:35:19,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:35:19,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:35:19,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:35:19,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:35:19,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:35:19,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:35:19,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:35:19,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:35:19,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:35:19,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:35:19,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:35:19,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:35:19,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:35:19,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:35:19,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:35:19,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:35:19,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:35:19,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:35:19,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:35:19,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:35:19,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:35:19,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:35:19,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:35:19,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:35:19,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:35:19,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:35:19,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:35:19,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:35:19,916 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:35:19,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:35:19,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:35:19,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:35:19,927 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:35:19,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:35:19,927 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:35:19,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:35:19,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:35:19,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:35:19,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:35:19,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:35:19,929 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:35:19,929 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:35:19,930 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:35:19,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:35:19,930 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:35:19,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:35:19,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:35:19,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:35:19,931 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:35:19,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:35:19,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:35:19,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:35:19,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:35:19,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:35:19,933 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:35:19,933 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:35:19,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:35:19,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:35:19,934 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-11-15 22:35:19,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:35:19,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:35:19,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:35:19,987 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:35:19,987 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:35:19,988 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-15 22:35:20,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/6c5c67faf/4ddb720beea74c048171da95e023925c/FLAGe3fa9edab [2019-11-15 22:35:20,404 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:35:20,405 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-15 22:35:20,411 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/6c5c67faf/4ddb720beea74c048171da95e023925c/FLAGe3fa9edab [2019-11-15 22:35:20,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/data/6c5c67faf/4ddb720beea74c048171da95e023925c [2019-11-15 22:35:20,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:35:20,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:35:20,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:20,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:35:20,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:35:20,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:20" (1/1) ... [2019-11-15 22:35:20,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34074b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:20, skipping insertion in model container [2019-11-15 22:35:20,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:20" (1/1) ... [2019-11-15 22:35:20,810 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:35:20,827 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:35:21,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:21,024 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:35:21,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:21,066 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:35:21,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21 WrapperNode [2019-11-15 22:35:21,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:21,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:21,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:35:21,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:35:21,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:21,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:35:21,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:35:21,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:35:21,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... [2019-11-15 22:35:21,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:35:21,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:35:21,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:35:21,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:35:21,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:35:21,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:35:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 22:35:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:35:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:35:21,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:35:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 22:35:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:35:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:35:21,608 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:35:21,609 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 22:35:21,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:21 BoogieIcfgContainer [2019-11-15 22:35:21,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:35:21,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:35:21,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:35:21,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:35:21,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:35:20" (1/3) ... [2019-11-15 22:35:21,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41468f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:35:21, skipping insertion in model container [2019-11-15 22:35:21,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:21" (2/3) ... [2019-11-15 22:35:21,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41468f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:35:21, skipping insertion in model container [2019-11-15 22:35:21,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:21" (3/3) ... [2019-11-15 22:35:21,617 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-11-15 22:35:21,624 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:35:21,630 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:35:21,639 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:35:21,658 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:35:21,658 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:35:21,659 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:35:21,659 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:35:21,659 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:35:21,659 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:35:21,659 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:35:21,659 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:35:21,669 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-15 22:35:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 22:35:21,673 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:21,674 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:21,676 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:21,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:21,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-11-15 22:35:21,689 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:21,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109795956] [2019-11-15 22:35:21,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:21,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:35:21,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:21,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:21,777 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:21,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109795956] [2019-11-15 22:35:21,783 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:21,784 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:35:21,784 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332766213] [2019-11-15 22:35:21,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:35:21,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:35:21,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:35:21,798 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-15 22:35:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:21,810 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-11-15 22:35:21,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:35:21,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 22:35:21,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:21,819 INFO L225 Difference]: With dead ends: 28 [2019-11-15 22:35:21,819 INFO L226 Difference]: Without dead ends: 12 [2019-11-15 22:35:21,822 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:35:21,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-15 22:35:21,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-15 22:35:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 22:35:21,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-15 22:35:21,850 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-11-15 22:35:21,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:21,851 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-15 22:35:21,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:35:21,851 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-15 22:35:21,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:35:21,851 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:21,851 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:22,052 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:35:22,052 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:22,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:22,053 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-11-15 22:35:22,053 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:22,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432487894] [2019-11-15 22:35:22,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:22,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-15 22:35:22,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:22,252 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:22,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432487894] [2019-11-15 22:35:22,401 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:22,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-15 22:35:22,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477252025] [2019-11-15 22:35:22,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 22:35:22,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:22,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 22:35:22,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:35:22,404 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 9 states. [2019-11-15 22:35:22,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:22,564 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-15 22:35:22,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:35:22,565 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-11-15 22:35:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:22,565 INFO L225 Difference]: With dead ends: 12 [2019-11-15 22:35:22,565 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:35:22,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-15 22:35:22,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:35:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:35:22,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:35:22,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:35:22,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-15 22:35:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:22,570 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:35:22,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 22:35:22,570 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:35:22,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:35:22,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:35:22,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:35:22,848 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:35:22,848 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-15 22:35:22,848 INFO L443 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-15 22:35:22,848 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-15 22:35:22,849 INFO L446 ceAbstractionStarter]: At program point L44(lines 29 45) the Hoare annotation is: true [2019-11-15 22:35:22,849 INFO L443 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-15 22:35:22,849 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 22:35:22,849 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:35:22,850 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:35:22,851 INFO L439 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fabs_float_~x .cse0) (= |ULTIMATE.start_fabs_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) .cse0))) [2019-11-15 22:35:22,851 INFO L443 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-15 22:35:22,851 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= ULTIMATE.start_fabs_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-15 22:35:22,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2019-11-15 22:35:22,851 INFO L439 ceAbstractionStarter]: At program point L12(line 12) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_fabs_float_~x .cse0) (= |ULTIMATE.start_fabs_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) .cse0))) [2019-11-15 22:35:22,852 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2019-11-15 22:35:22,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,865 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,877 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,881 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,886 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:35:22 BoogieIcfgContainer [2019-11-15 22:35:22,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:35:22,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:35:22,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:35:22,889 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:35:22,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:21" (3/4) ... [2019-11-15 22:35:22,893 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:35:22,905 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 22:35:22,905 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 22:35:22,906 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 22:35:22,967 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3231fe27-e942-4681-aa89-d5e36c202de8/bin/uautomizer/witness.graphml [2019-11-15 22:35:22,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:35:22,969 INFO L168 Benchmark]: Toolchain (without parser) took 2174.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 948.3 MB in the beginning and 1.0 GB in the end (delta: -70.6 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:22,969 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:22,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.25 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:22,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:22,971 INFO L168 Benchmark]: Boogie Preprocessor took 27.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:22,972 INFO L168 Benchmark]: RCFGBuilder took 425.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:22,972 INFO L168 Benchmark]: TraceAbstraction took 1277.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:22,973 INFO L168 Benchmark]: Witness Printer took 78.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:22,975 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.25 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 425.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1277.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. * Witness Printer took 78.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: 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: 14]: Loop Invariant [2019-11-15 22:35:22,983 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,983 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,983 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 12]: Loop Invariant [2019-11-15 22:35:22,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,986 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,986 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,986 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((1bv32 == \result && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2019-11-15 22:35:22,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:35:22,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 60 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1288 SizeOfPredicates, 11 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...