./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.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_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ................................................................................................................................................................................................................................................................................................ 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_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:16:54,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:16:54,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:16:54,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:16:54,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:16:54,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:16:54,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:16:54,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:16:54,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:16:54,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:16:54,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:16:54,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:16:54,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:16:54,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:16:54,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:16:54,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:16:54,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:16:54,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:16:54,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:16:54,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:16:54,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:16:54,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:16:54,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:16:54,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:16:54,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:16:54,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:16:54,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:16:54,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:16:54,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:16:54,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:16:54,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:16:54,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:16:54,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:16:54,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:16:54,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:16:54,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:16:54,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:16:54,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:16:54,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:16:54,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:16:54,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:16:54,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:16:54,829 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:16:54,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:16:54,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:16:54,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:16:54,842 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:16:54,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:16:54,842 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:16:54,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:16:54,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:16:54,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:16:54,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:16:54,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:16:54,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:16:54,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:16:54,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:16:54,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:16:54,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:16:54,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:16:54,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:16:54,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:16:54,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:16:54,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:16:54,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:16:54,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:16:54,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:16:54,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:16:54,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:16:54,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:16:54,850 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_e4f27079-665a-4b82-8905-03d35389d769/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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-11-16 00:16:54,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:16:54,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:16:54,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:16:54,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:16:54,897 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:16:54,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-16 00:16:54,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/04052a5cc/84c500557ffe482ea3fcaf37ebded4cc/FLAG99bddaf7b [2019-11-16 00:16:55,401 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:16:55,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-16 00:16:55,414 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/04052a5cc/84c500557ffe482ea3fcaf37ebded4cc/FLAG99bddaf7b [2019-11-16 00:16:55,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/04052a5cc/84c500557ffe482ea3fcaf37ebded4cc [2019-11-16 00:16:55,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:16:55,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:16:55,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:16:55,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:16:55,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:16:55,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:16:55" (1/1) ... [2019-11-16 00:16:55,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d47d737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:55, skipping insertion in model container [2019-11-16 00:16:55,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:16:55" (1/1) ... [2019-11-16 00:16:55,811 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:16:55,840 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:16:56,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:16:56,204 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:16:56,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:16:56,266 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:16:56,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56 WrapperNode [2019-11-16 00:16:56,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:16:56,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:16:56,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:16:56,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:16:56,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:16:56,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:16:56,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:16:56,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:16:56,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... [2019-11-16 00:16:56,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:16:56,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:16:56,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:16:56,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:16:56,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/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 [2019-11-16 00:16:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:16:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:16:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:16:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:16:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:16:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:16:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:16:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-16 00:16:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:16:56,980 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:16:56,981 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-16 00:16:56,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:56 BoogieIcfgContainer [2019-11-16 00:16:56,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:16:56,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:16:56,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:16:56,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:16:56,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:16:55" (1/3) ... [2019-11-16 00:16:56,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e190ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:16:56, skipping insertion in model container [2019-11-16 00:16:56,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:56" (2/3) ... [2019-11-16 00:16:56,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e190ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:16:56, skipping insertion in model container [2019-11-16 00:16:56,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:56" (3/3) ... [2019-11-16 00:16:56,990 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-11-16 00:16:56,998 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:16:57,004 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:16:57,017 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:16:57,043 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:16:57,043 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:16:57,043 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:16:57,043 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:16:57,043 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:16:57,044 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:16:57,044 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:16:57,044 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:16:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-16 00:16:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:16:57,064 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:16:57,065 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:16:57,066 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:16:57,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:57,072 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-16 00:16:57,081 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:57,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354175180] [2019-11-16 00:16:57,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:57,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:57,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:57,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:57,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354175180] [2019-11-16 00:16:57,207 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:16:57,207 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:16:57,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154464190] [2019-11-16 00:16:57,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:16:57,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:16:57,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:16:57,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:16:57,230 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-16 00:16:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:16:57,251 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-16 00:16:57,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:16:57,253 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:16:57,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:16:57,263 INFO L225 Difference]: With dead ends: 82 [2019-11-16 00:16:57,263 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:16:57,267 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 [2019-11-16 00:16:57,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:16:57,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:16:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:16:57,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-16 00:16:57,306 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-16 00:16:57,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:16:57,307 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-16 00:16:57,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:16:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-16 00:16:57,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:16:57,308 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:16:57,308 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:16:57,308 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:16:57,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:57,309 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-16 00:16:57,309 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:57,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070127986] [2019-11-16 00:16:57,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:57,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:57,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:57,508 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:57,510 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:16:57,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:16:57 BoogieIcfgContainer [2019-11-16 00:16:57,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:16:57,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:16:57,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:16:57,559 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:16:57,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:56" (3/4) ... [2019-11-16 00:16:57,563 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:16:57,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:16:57,565 INFO L168 Benchmark]: Toolchain (without parser) took 1772.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -129.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:57,566 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:16:57,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:57,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.26 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:57,568 INFO L168 Benchmark]: Boogie Preprocessor took 41.92 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. [2019-11-16 00:16:57,569 INFO L168 Benchmark]: RCFGBuilder took 613.86 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: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:57,569 INFO L168 Benchmark]: TraceAbstraction took 574.64 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:57,570 INFO L168 Benchmark]: Witness Printer took 4.86 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. [2019-11-16 00:16:57,573 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 470.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.26 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.92 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. * RCFGBuilder took 613.86 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: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 574.64 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.86 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: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = 0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={1:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:17:00,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:17:00,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:17:00,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:17:00,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:17:00,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:17:00,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:17:00,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:17:00,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:17:00,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:17:00,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:17:00,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:17:00,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:17:00,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:17:00,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:17:00,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:17:00,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:17:00,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:17:00,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:17:00,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:17:00,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:17:00,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:17:00,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:17:00,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:17:00,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:17:00,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:17:00,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:17:00,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:17:00,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:17:00,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:17:00,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:17:00,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:17:00,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:17:00,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:17:00,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:17:00,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:17:00,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:17:00,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:17:00,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:17:00,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:17:00,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:17:00,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:17:00,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:17:00,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:17:00,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:17:00,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:17:00,160 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:17:00,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:17:00,161 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:17:00,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:17:00,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:17:00,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:17:00,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:17:00,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:17:00,163 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:17:00,164 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:17:00,164 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:17:00,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:17:00,165 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:17:00,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:17:00,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:17:00,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:17:00,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:17:00,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:17:00,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:17:00,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:17:00,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:17:00,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:17:00,168 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:17:00,168 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:17:00,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:17:00,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:17:00,169 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_e4f27079-665a-4b82-8905-03d35389d769/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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-11-16 00:17:00,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:17:00,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:17:00,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:17:00,229 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:17:00,230 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:17:00,231 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-16 00:17:00,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/3a8cd99cf/74893786b2fb49a69a94d650cd5d1d2a/FLAGf3756e0bc [2019-11-16 00:17:00,788 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:17:00,793 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-16 00:17:00,803 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/3a8cd99cf/74893786b2fb49a69a94d650cd5d1d2a/FLAGf3756e0bc [2019-11-16 00:17:01,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/data/3a8cd99cf/74893786b2fb49a69a94d650cd5d1d2a [2019-11-16 00:17:01,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:17:01,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:17:01,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:17:01,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:17:01,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:17:01,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f7ee00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01, skipping insertion in model container [2019-11-16 00:17:01,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,184 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:17:01,208 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:17:01,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:17:01,476 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:17:01,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:17:01,662 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:17:01,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01 WrapperNode [2019-11-16 00:17:01,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:17:01,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:17:01,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:17:01,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:17:01,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:17:01,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:17:01,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:17:01,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:17:01,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:17:01,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:17:01,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:17:01,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:17:01,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/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 [2019-11-16 00:17:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-16 00:17:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:17:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-16 00:17:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:17:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:17:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:17:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-16 00:17:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:17:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:17:03,137 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:17:03,137 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-16 00:17:03,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:03 BoogieIcfgContainer [2019-11-16 00:17:03,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:17:03,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:17:03,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:17:03,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:17:03,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:17:01" (1/3) ... [2019-11-16 00:17:03,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a30ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:03, skipping insertion in model container [2019-11-16 00:17:03,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (2/3) ... [2019-11-16 00:17:03,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a30ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:03, skipping insertion in model container [2019-11-16 00:17:03,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:03" (3/3) ... [2019-11-16 00:17:03,146 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-11-16 00:17:03,156 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:17:03,162 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:17:03,171 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:17:03,192 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:17:03,193 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:17:03,193 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:17:03,193 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:17:03,193 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:17:03,193 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:17:03,194 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:17:03,194 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:17:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-16 00:17:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:17:03,216 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:03,217 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:03,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:03,224 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-16 00:17:03,236 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:17:03,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263825904] [2019-11-16 00:17:03,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/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 [2019-11-16 00:17:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:03,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:17:03,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:03,609 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:17:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:03,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263825904] [2019-11-16 00:17:03,615 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:17:03,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:17:03,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698832357] [2019-11-16 00:17:03,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:17:03,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:17:03,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:17:03,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:17:03,638 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-16 00:17:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:03,662 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-16 00:17:03,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:17:03,663 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:17:03,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:03,675 INFO L225 Difference]: With dead ends: 82 [2019-11-16 00:17:03,675 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:17:03,679 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:17:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:17:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:17:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:17:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-16 00:17:03,721 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-16 00:17:03,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:03,721 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-16 00:17:03,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:17:03,722 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-16 00:17:03,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:17:03,722 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:03,723 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:03,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:17:03,927 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:03,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:03,928 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-16 00:17:03,928 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:17:03,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367028876] [2019-11-16 00:17:03,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/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 [2019-11-16 00:17:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:04,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-16 00:17:04,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:06,035 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-16 00:17:06,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:08,237 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:17:12,187 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-16 00:17:12,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:12,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367028876] [2019-11-16 00:17:12,343 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:17:12,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-16 00:17:12,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127637845] [2019-11-16 00:17:12,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-16 00:17:12,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:17:12,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-16 00:17:12,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2019-11-16 00:17:12,360 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-11-16 00:17:18,206 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2019-11-16 00:17:21,944 WARN L191 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2019-11-16 00:17:24,847 WARN L191 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2019-11-16 00:17:24,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:24,890 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-11-16 00:17:24,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:17:24,892 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-16 00:17:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:24,893 INFO L225 Difference]: With dead ends: 44 [2019-11-16 00:17:24,893 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:17:24,894 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2019-11-16 00:17:24,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:17:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:17:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:17:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-16 00:17:24,902 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-16 00:17:24,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:24,903 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-16 00:17:24,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-16 00:17:24,903 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-16 00:17:24,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:17:24,904 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:24,904 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:25,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:17:25,120 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:25,120 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-16 00:17:25,121 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:17:25,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976211947] [2019-11-16 00:17:25,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-16 00:17:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:25,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:17:25,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:25,285 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:17:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:25,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976211947] [2019-11-16 00:17:25,355 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:17:25,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 6 [2019-11-16 00:17:25,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48861030] [2019-11-16 00:17:25,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:17:25,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:17:25,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:17:25,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:17:25,357 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-11-16 00:17:25,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:25,405 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-16 00:17:25,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:17:25,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-11-16 00:17:25,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:25,406 INFO L225 Difference]: With dead ends: 39 [2019-11-16 00:17:25,407 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:17:25,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:17:25,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:17:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:17:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:17:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:17:25,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-16 00:17:25,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:25,410 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:17:25,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:17:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:17:25,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:17:25,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:17:25,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:17:26,726 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 14 [2019-11-16 00:17:28,714 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 11 [2019-11-16 00:17:28,715 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:17:28,716 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-16 00:17:28,716 INFO L446 ceAbstractionStarter]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-11-16 00:17:28,716 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:17:28,716 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:17:28,716 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-16 00:17:28,716 INFO L443 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-16 00:17:28,717 INFO L439 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) [2019-11-16 00:17:28,717 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-16 00:17:28,717 INFO L443 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:17:28,717 INFO L439 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-11-16 00:17:28,717 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-16 00:17:28,717 INFO L443 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-16 00:17:28,717 INFO L439 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-16 00:17:28,718 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-16 00:17:28,718 INFO L439 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-16 00:17:28,718 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-16 00:17:28,718 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-16 00:17:28,718 INFO L443 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-16 00:17:28,718 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-11-16 00:17:28,719 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-16 00:17:28,719 INFO L443 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:17:28,719 INFO L443 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-16 00:17:28,719 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:17:28,719 INFO L443 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-16 00:17:28,719 INFO L443 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2019-11-16 00:17:28,719 INFO L439 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-16 00:17:28,720 INFO L443 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:17:28,720 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-16 00:17:28,720 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-16 00:17:28,720 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:17:28,720 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-16 00:17:28,720 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-16 00:17:28,720 INFO L443 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:17:28,720 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-16 00:17:28,721 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-11-16 00:17:28,721 INFO L439 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-11-16 00:17:28,721 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-16 00:17:28,721 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-16 00:17:28,721 INFO L439 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-16 00:17:28,722 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-16 00:17:28,722 INFO L443 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:17:28,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,733 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,734 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:17:28 BoogieIcfgContainer [2019-11-16 00:17:28,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:17:28,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:17:28,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:17:28,747 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:17:28,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:03" (3/4) ... [2019-11-16 00:17:28,752 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:17:28,765 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-16 00:17:28,765 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-16 00:17:28,813 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e4f27079-665a-4b82-8905-03d35389d769/bin/uautomizer/witness.graphml [2019-11-16 00:17:28,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:17:28,815 INFO L168 Benchmark]: Toolchain (without parser) took 27648.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 993.8 MB in the end (delta: -42.8 MB). Peak memory consumption was 104.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:28,816 INFO L168 Benchmark]: CDTParser took 0.62 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. [2019-11-16 00:17:28,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:28,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.20 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. [2019-11-16 00:17:28,818 INFO L168 Benchmark]: Boogie Preprocessor took 43.58 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:28,819 INFO L168 Benchmark]: RCFGBuilder took 1380.20 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:28,819 INFO L168 Benchmark]: TraceAbstraction took 25606.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:28,825 INFO L168 Benchmark]: Witness Printer took 66.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 993.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:28,829 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 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 495.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.58 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1380.20 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25606.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. * Witness Printer took 66.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 993.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: 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: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-11-16 00:17:28,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,851 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,851 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,852 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,852 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: (y == ~Pluszero~LONGDOUBLE() && 1bv32 == \result) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: y == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 17]: Loop Invariant [2019-11-16 00:17:28,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,855 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,856 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,857 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-16 00:17:28,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:17:28,857 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: y == ~Pluszero~LONGDOUBLE() && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 25.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, HoareTripleCheckerStatistics: 112 SDtfs, 56 SDslu, 198 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 18.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 47 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 10 QuantifiedInterpolants, 4279 SizeOfPredicates, 15 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...