./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 95131fbb90a45f134b236581750b2f1a3cba4d8c ......................................................................................................................................................................................................................................................................................................... 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_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 95131fbb90a45f134b236581750b2f1a3cba4d8c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:17:33,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:17:33,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:17:33,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:17:33,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:17:33,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:17:33,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:17:33,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:17:33,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:17:33,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:17:33,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:17:33,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:17:33,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:17:33,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:17:33,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:17:33,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:17:33,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:17:33,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:17:33,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:17:33,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:17:33,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:17:33,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:17:33,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:17:33,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:17:33,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:17:33,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:17:33,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:17:33,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:17:33,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:17:33,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:17:33,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:17:33,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:17:33,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:17:33,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:17:33,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:17:33,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:17:33,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:17:33,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:17:33,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:17:33,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:17:33,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:17:33,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:17:33,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:17:33,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:17:33,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:17:33,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:17:33,950 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:17:33,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:17:33,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:17:33,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:17:33,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:17:33,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:17:33,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:17:33,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:17:33,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:17:33,952 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:17:33,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:17:33,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:17:33,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:17:33,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:17:33,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:17:33,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:17:33,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:17:33,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:17:33,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:17:33,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:17:33,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:17:33,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:17:33,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:17:33,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:17:33,956 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_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2019-11-20 07:17:34,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:17:34,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:17:34,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:17:34,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:17:34,138 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:17:34,139 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-20 07:17:34,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/c56db640e/113fcfcafb9449898d0cfceb205b2e62/FLAG44c8a9c70 [2019-11-20 07:17:34,602 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:17:34,605 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-20 07:17:34,613 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/c56db640e/113fcfcafb9449898d0cfceb205b2e62/FLAG44c8a9c70 [2019-11-20 07:17:34,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/c56db640e/113fcfcafb9449898d0cfceb205b2e62 [2019-11-20 07:17:34,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:17:34,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:17:34,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:17:34,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:17:34,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:17:34,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:17:34" (1/1) ... [2019-11-20 07:17:34,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea86b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:34, skipping insertion in model container [2019-11-20 07:17:34,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:17:34" (1/1) ... [2019-11-20 07:17:34,959 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:17:34,992 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:17:35,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:17:35,355 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:17:35,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:17:35,414 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:17:35,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35 WrapperNode [2019-11-20 07:17:35,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:17:35,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:17:35,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:17:35,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:17:35,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:17:35,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:17:35,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:17:35,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:17:35,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... [2019-11-20 07:17:35,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:17:35,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:17:35,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:17:35,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:17:35,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 [2019-11-20 07:17:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:17:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 07:17:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 07:17:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 07:17:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:17:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:17:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 07:17:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 07:17:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:17:35,945 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:17:35,946 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 07:17:35,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:35 BoogieIcfgContainer [2019-11-20 07:17:35,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:17:35,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:17:35,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:17:35,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:17:35,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:17:34" (1/3) ... [2019-11-20 07:17:35,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:17:35, skipping insertion in model container [2019-11-20 07:17:35,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:35" (2/3) ... [2019-11-20 07:17:35,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:17:35, skipping insertion in model container [2019-11-20 07:17:35,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:35" (3/3) ... [2019-11-20 07:17:35,954 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2019-11-20 07:17:35,963 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:17:35,970 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:17:35,980 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:17:36,001 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:17:36,001 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:17:36,001 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:17:36,001 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:17:36,002 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:17:36,002 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:17:36,002 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:17:36,002 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:17:36,014 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-20 07:17:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 07:17:36,018 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:17:36,019 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:17:36,019 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:17:36,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:17:36,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2019-11-20 07:17:36,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:17:36,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881601678] [2019-11-20 07:17:36,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:17:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:17:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:17:36,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881601678] [2019-11-20 07:17:36,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:17:36,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:17:36,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646816227] [2019-11-20 07:17:36,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 07:17:36,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:17:36,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:17:36,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:17:36,180 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-20 07:17:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:17:36,197 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-20 07:17:36,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:17:36,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 07:17:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:17:36,209 INFO L225 Difference]: With dead ends: 64 [2019-11-20 07:17:36,209 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 07:17:36,212 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:17:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 07:17:36,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 07:17:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 07:17:36,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-20 07:17:36,245 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2019-11-20 07:17:36,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:17:36,245 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-20 07:17:36,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 07:17:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-20 07:17:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 07:17:36,246 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:17:36,246 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:17:36,247 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:17:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:17:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2019-11-20 07:17:36,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:17:36,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787233466] [2019-11-20 07:17:36,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:17:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:17:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:17:36,365 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:17:36,366 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 07:17:36,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:17:36 BoogieIcfgContainer [2019-11-20 07:17:36,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:17:36,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:17:36,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:17:36,419 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:17:36,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:35" (3/4) ... [2019-11-20 07:17:36,426 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 07:17:36,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:17:36,429 INFO L168 Benchmark]: Toolchain (without parser) took 1484.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -95.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:17:36,430 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:17:36,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:17:36,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:17:36,433 INFO L168 Benchmark]: Boogie Preprocessor took 39.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:17:36,434 INFO L168 Benchmark]: RCFGBuilder took 439.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-20 07:17:36,435 INFO L168 Benchmark]: TraceAbstraction took 470.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:17:36,435 INFO L168 Benchmark]: Witness Printer took 7.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:17:36,445 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 470.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 439.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 470.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 7.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 132]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 0.0f / 0.0f; [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (hx) = gf_u.word [L65] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] float res = atan_float(x); [L15] return x != x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-678e011 [2019-11-20 07:17:38,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:17:38,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:17:38,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:17:38,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:17:38,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:17:38,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:17:38,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:17:38,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:17:38,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:17:38,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:17:38,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:17:38,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:17:38,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:17:38,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:17:38,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:17:38,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:17:38,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:17:38,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:17:38,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:17:38,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:17:38,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:17:38,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:17:38,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:17:38,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:17:38,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:17:38,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:17:38,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:17:38,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:17:38,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:17:38,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:17:38,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:17:38,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:17:38,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:17:38,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:17:38,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:17:38,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:17:38,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:17:38,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:17:38,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:17:38,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:17:38,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 07:17:38,545 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:17:38,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:17:38,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:17:38,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:17:38,548 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:17:38,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:17:38,548 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:17:38,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:17:38,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:17:38,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:17:38,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:17:38,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:17:38,550 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 07:17:38,550 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 07:17:38,551 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:17:38,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:17:38,551 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:17:38,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:17:38,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:17:38,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:17:38,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:17:38,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:17:38,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:17:38,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:17:38,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:17:38,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:17:38,554 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 07:17:38,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 07:17:38,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:17:38,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 07:17:38,555 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_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2019-11-20 07:17:38,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:17:38,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:17:38,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:17:38,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:17:38,865 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:17:38,865 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-20 07:17:38,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/53991dfe7/c8fec06ba2144840a879049432f1ffa4/FLAGc092ddfe8 [2019-11-20 07:17:39,317 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:17:39,317 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-20 07:17:39,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/53991dfe7/c8fec06ba2144840a879049432f1ffa4/FLAGc092ddfe8 [2019-11-20 07:17:39,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/data/53991dfe7/c8fec06ba2144840a879049432f1ffa4 [2019-11-20 07:17:39,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:17:39,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:17:39,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:17:39,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:17:39,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:17:39,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:17:39" (1/1) ... [2019-11-20 07:17:39,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc1e395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:39, skipping insertion in model container [2019-11-20 07:17:39,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:17:39" (1/1) ... [2019-11-20 07:17:39,767 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:17:39,795 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:17:40,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:17:40,038 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:17:40,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:17:40,172 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:17:40,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40 WrapperNode [2019-11-20 07:17:40,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:17:40,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:17:40,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:17:40,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:17:40,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:17:40,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:17:40,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:17:40,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:17:40,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... [2019-11-20 07:17:40,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:17:40,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:17:40,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:17:40,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:17:40,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 [2019-11-20 07:17:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-20 07:17:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:17:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 07:17:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 07:17:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:17:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:17:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 07:17:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 07:17:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:17:47,778 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:17:47,778 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 07:17:47,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:47 BoogieIcfgContainer [2019-11-20 07:17:47,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:17:47,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:17:47,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:17:47,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:17:47,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:17:39" (1/3) ... [2019-11-20 07:17:47,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d8d3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:17:47, skipping insertion in model container [2019-11-20 07:17:47,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:40" (2/3) ... [2019-11-20 07:17:47,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d8d3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:17:47, skipping insertion in model container [2019-11-20 07:17:47,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:47" (3/3) ... [2019-11-20 07:17:47,787 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2019-11-20 07:17:47,796 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:17:47,802 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:17:47,810 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:17:47,827 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:17:47,827 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:17:47,827 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:17:47,828 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:17:47,828 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:17:47,828 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:17:47,828 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:17:47,828 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:17:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-20 07:17:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 07:17:47,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:17:47,848 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:17:47,848 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:17:47,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:17:47,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2019-11-20 07:17:47,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:17:47,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451262376] [2019-11-20 07:17:47,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 [2019-11-20 07:17:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:17:48,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 07:17:48,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:17:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:17:48,066 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:17:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:17:48,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451262376] [2019-11-20 07:17:48,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:17:48,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 07:17:48,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916116264] [2019-11-20 07:17:48,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 07:17:48,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:17:48,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:17:48,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:17:48,088 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-20 07:17:48,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:17:48,107 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-20 07:17:48,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:17:48,109 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 07:17:48,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:17:48,119 INFO L225 Difference]: With dead ends: 64 [2019-11-20 07:17:48,119 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 07:17:48,122 INFO L630 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 [2019-11-20 07:17:48,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 07:17:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 07:17:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 07:17:48,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-20 07:17:48,157 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2019-11-20 07:17:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:17:48,158 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-20 07:17:48,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 07:17:48,158 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-20 07:17:48,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 07:17:48,159 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:17:48,159 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:17:48,381 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 07:17:48,381 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:17:48,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:17:48,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2019-11-20 07:17:48,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:17:48,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685836497] [2019-11-20 07:17:48,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 [2019-11-20 07:17:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:17:48,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:17:48,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:17:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:17:48,652 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:17:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:17:48,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685836497] [2019-11-20 07:17:48,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:17:48,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 07:17:48,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476900507] [2019-11-20 07:17:48,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 07:17:48,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:17:48,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 07:17:48,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:17:48,780 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 8 states. [2019-11-20 07:18:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:18:01,210 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-11-20 07:18:01,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:18:01,266 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 07:18:01,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:18:01,267 INFO L225 Difference]: With dead ends: 44 [2019-11-20 07:18:01,268 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 07:18:01,269 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-20 07:18:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 07:18:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-11-20 07:18:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 07:18:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2019-11-20 07:18:01,273 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2019-11-20 07:18:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:18:01,274 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2019-11-20 07:18:01,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 07:18:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2019-11-20 07:18:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 07:18:01,275 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:18:01,275 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:18:01,477 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 07:18:01,477 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:18:01,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:18:01,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2019-11-20 07:18:01,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:18:01,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171104511] [2019-11-20 07:18:01,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/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 [2019-11-20 07:18:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:18:01,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 07:18:01,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:18:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:18:01,786 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:18:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:18:01,919 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171104511] [2019-11-20 07:18:01,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:18:01,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-11-20 07:18:01,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286125409] [2019-11-20 07:18:01,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 07:18:01,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:18:01,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:18:01,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:18:01,921 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 9 states. [2019-11-20 07:18:02,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:18:02,033 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-20 07:18:02,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:18:02,035 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-11-20 07:18:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:18:02,036 INFO L225 Difference]: With dead ends: 30 [2019-11-20 07:18:02,036 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:18:02,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-11-20 07:18:02,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:18:02,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:18:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:18:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:18:02,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-20 07:18:02,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:18:02,038 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:18:02,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 07:18:02,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:18:02,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:18:02,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 07:18:02,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 07:18:02,341 INFO L444 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2019-11-20 07:18:02,341 INFO L440 ceAbstractionStarter]: At program point L60-2(lines 60 64) the Hoare annotation is: (= ULTIMATE.start_atan_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-20 07:18:02,341 INFO L444 ceAbstractionStarter]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2019-11-20 07:18:02,341 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-20 07:18:02,342 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-11-20 07:18:02,342 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2019-11-20 07:18:02,342 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 07:18:02,342 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 07:18:02,342 INFO L447 ceAbstractionStarter]: At program point L136(lines 120 137) the Hoare annotation is: true [2019-11-20 07:18:02,342 INFO L440 ceAbstractionStarter]: At program point L29(lines 17 30) the Hoare annotation is: false [2019-11-20 07:18:02,342 INFO L444 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2019-11-20 07:18:02,343 INFO L440 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_atan_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start_atan_float_~x .cse0))) [2019-11-20 07:18:02,343 INFO L444 ceAbstractionStarter]: For program point L131(lines 131 134) no Hoare annotation was computed. [2019-11-20 07:18:02,343 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 07:18:02,343 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2019-11-20 07:18:02,343 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2019-11-20 07:18:02,343 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-11-20 07:18:02,344 INFO L444 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2019-11-20 07:18:02,345 INFO L444 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2019-11-20 07:18:02,345 INFO L444 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2019-11-20 07:18:02,345 INFO L444 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2019-11-20 07:18:02,345 INFO L440 ceAbstractionStarter]: At program point L116-3(lines 56 118) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start_atan_float_~x .cse0))) [2019-11-20 07:18:02,345 INFO L444 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2019-11-20 07:18:02,345 INFO L444 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2019-11-20 07:18:02,346 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2019-11-20 07:18:02,348 INFO L444 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2019-11-20 07:18:02,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,365 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,368 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,373 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:18:02 BoogieIcfgContainer [2019-11-20 07:18:02,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:18:02,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:18:02,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:18:02,405 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:18:02,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:47" (3/4) ... [2019-11-20 07:18:02,410 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:18:02,426 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 07:18:02,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 07:18:02,428 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 07:18:02,468 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 07:18:02,471 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 07:18:02,534 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9fbe0dc8-3824-4b14-a9af-2f058375c947/bin/uautomizer/witness.graphml [2019-11-20 07:18:02,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:18:02,536 INFO L168 Benchmark]: Toolchain (without parser) took 22784.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.8 MB in the beginning and 968.4 MB in the end (delta: -6.6 MB). Peak memory consumption was 134.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:02,536 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:18:02,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:02,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.53 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:02,538 INFO L168 Benchmark]: Boogie Preprocessor took 45.05 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:02,538 INFO L168 Benchmark]: RCFGBuilder took 7508.19 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:02,538 INFO L168 Benchmark]: TraceAbstraction took 14624.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.0 MB in the end (delta: 116.7 MB). Peak memory consumption was 116.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:02,539 INFO L168 Benchmark]: Witness Printer took 129.39 ms. Allocated memory is still 1.2 GB. Free memory was 975.0 MB in the beginning and 968.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:02,541 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 419.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.53 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.05 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7508.19 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14624.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.0 MB in the end (delta: 116.7 MB). Peak memory consumption was 116.7 MB. Max. memory is 11.5 GB. * Witness Printer took 129.39 ms. Allocated memory is still 1.2 GB. Free memory was 975.0 MB in the beginning and 968.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 132]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2019-11-20 07:18:02,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 60]: Loop Invariant [2019-11-20 07:18:02,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 56]: Loop Invariant [2019-11-20 07:18:02,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:18:02,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 14.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 36 SDslu, 139 SDs, 0 SdLazy, 47 SolverSat, 3 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 12.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 50 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 3 QuantifiedInterpolants, 2700 SizeOfPredicates, 14 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...