./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 ............................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:47:38,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:47:38,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:47:38,943 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:47:38,944 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:47:38,944 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:47:38,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:47:38,946 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:47:38,948 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:47:38,948 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:47:38,949 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:47:38,949 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:47:38,950 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:47:38,950 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:47:38,951 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:47:38,952 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:47:38,952 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:47:38,953 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:47:38,955 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:47:38,956 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:47:38,957 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:47:38,957 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:47:38,958 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:47:38,959 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:47:38,959 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:47:38,959 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:47:38,960 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:47:38,960 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:47:38,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:47:38,961 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:47:38,961 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:47:38,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:47:38,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:47:38,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:47:38,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:47:38,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:47:38,963 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 15:47:38,971 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:47:38,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:47:38,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:47:38,971 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:47:38,972 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 15:47:38,972 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 15:47:38,972 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 15:47:38,972 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:47:38,973 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:47:38,974 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:47:38,974 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:47:38,974 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 15:47:38,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:47:38,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:47:38,975 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2018-12-09 15:47:38,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:47:39,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:47:39,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:47:39,008 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:47:39,008 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:47:39,009 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-09 15:47:39,047 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/ea7c1e615/94341ef1651345f0aca0714253070abc/FLAG1aa3ef66d [2018-12-09 15:47:39,503 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:47:39,503 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-09 15:47:39,507 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/ea7c1e615/94341ef1651345f0aca0714253070abc/FLAG1aa3ef66d [2018-12-09 15:47:39,515 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/ea7c1e615/94341ef1651345f0aca0714253070abc [2018-12-09 15:47:39,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:47:39,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:47:39,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:47:39,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:47:39,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:47:39,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf0f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39, skipping insertion in model container [2018-12-09 15:47:39,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:47:39,538 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:47:39,642 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:47:39,646 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:47:39,668 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:47:39,722 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:47:39,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39 WrapperNode [2018-12-09 15:47:39,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:47:39,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:47:39,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:47:39,723 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:47:39,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:47:39,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:47:39,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:47:39,740 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:47:39,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... [2018-12-09 15:47:39,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:47:39,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:47:39,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:47:39,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:47:39,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 [2018-12-09 15:47:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:47:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:47:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:47:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 15:47:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:47:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-09 15:47:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 15:47:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 15:47:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-09 15:47:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-09 15:47:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 15:47:39,989 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:47:39,990 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 15:47:39,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:47:39 BoogieIcfgContainer [2018-12-09 15:47:39,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:47:39,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:47:39,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:47:39,994 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:47:39,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:47:39" (1/3) ... [2018-12-09 15:47:39,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bf54bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:47:39, skipping insertion in model container [2018-12-09 15:47:39,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:39" (2/3) ... [2018-12-09 15:47:39,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bf54bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:47:39, skipping insertion in model container [2018-12-09 15:47:39,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:47:39" (3/3) ... [2018-12-09 15:47:39,996 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b_true-unreach-call.c [2018-12-09 15:47:40,005 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:47:40,010 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:47:40,019 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:47:40,037 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 15:47:40,037 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:47:40,038 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:47:40,038 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:47:40,038 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:47:40,038 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:47:40,038 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:47:40,038 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:47:40,038 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:47:40,049 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-09 15:47:40,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 15:47:40,055 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:40,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:47:40,057 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:40,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1775699146, now seen corresponding path program 1 times [2018-12-09 15:47:40,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:47:40,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:47:40,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:40,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:40,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:47:40,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:47:40,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:47:40,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 15:47:40,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 15:47:40,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:47:40,180 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-09 15:47:40,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:47:40,194 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-12-09 15:47:40,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 15:47:40,195 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 15:47:40,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:47:40,200 INFO L225 Difference]: With dead ends: 100 [2018-12-09 15:47:40,200 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 15:47:40,202 INFO L631 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 [2018-12-09 15:47:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 15:47:40,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-09 15:47:40,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 15:47:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-09 15:47:40,225 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-12-09 15:47:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:47:40,225 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-09 15:47:40,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 15:47:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-09 15:47:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 15:47:40,225 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:40,226 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:47:40,226 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:40,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:40,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1046652015, now seen corresponding path program 1 times [2018-12-09 15:47:40,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:47:40,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:47:40,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:40,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:40,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:47:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:47:40,298 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 15:47:40,316 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450963 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 15:47:40,316 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 15:47:40,316 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-09 15:47:40,317 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 15:47:40,317 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450961 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-09 15:47:40,317 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450957 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 15:47:40,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:47:40 BoogieIcfgContainer [2018-12-09 15:47:40,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:47:40,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:47:40,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:47:40,324 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:47:40,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:47:39" (3/4) ... [2018-12-09 15:47:40,327 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 15:47:40,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:47:40,328 INFO L168 Benchmark]: Toolchain (without parser) took 810.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -92.0 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:47:40,329 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:47:40,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-09 15:47:40,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:47:40,329 INFO L168 Benchmark]: Boogie Preprocessor took 23.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:47:40,330 INFO L168 Benchmark]: RCFGBuilder took 227.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-12-09 15:47:40,330 INFO L168 Benchmark]: TraceAbstraction took 333.43 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:47:40,330 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:47:40,332 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 204.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 227.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 333.43 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450963 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450961 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450957 could not be translated for associated CType ARRAY#_4_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someUnaryFLOAToperation at line 137, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] 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, }; [L49-L51] 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 [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450960, \old(huge_floor)=6442450954, \old(one_atan)=6442450945, \old(pi)=6442450955, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450950, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = -0.0f; VAL [aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] CALL, EXPR atan_float(x) VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L63] COND TRUE ix >= 0x50800000 VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L138] RET, EXPR atan_float(x) VAL [aT_atan={6442450962:0}, atan_float(x)=6442450958, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L138] float res = atan_float(x); [L141] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450958, res == -0.0f && __signbit_float(res) == 1=0, x=6442450953] [L141] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L142] __VERIFIER_error() VAL [aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450958, x=6442450953] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 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=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-09 15:47:41,683 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:47:41,684 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:47:41,690 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:47:41,690 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:47:41,691 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:47:41,692 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:47:41,693 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:47:41,694 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:47:41,695 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:47:41,695 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:47:41,695 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:47:41,696 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:47:41,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:47:41,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:47:41,697 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:47:41,697 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:47:41,698 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:47:41,700 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:47:41,700 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:47:41,701 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:47:41,702 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:47:41,703 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:47:41,703 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:47:41,703 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:47:41,704 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:47:41,704 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:47:41,705 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:47:41,705 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:47:41,706 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:47:41,706 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:47:41,706 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:47:41,706 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:47:41,706 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:47:41,707 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:47:41,707 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:47:41,707 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 15:47:41,714 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:47:41,714 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:47:41,715 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:47:41,715 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:47:41,715 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 15:47:41,715 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 15:47:41,715 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 15:47:41,715 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:47:41,715 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:47:41,715 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:47:41,716 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:47:41,716 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:47:41,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 15:47:41,717 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2018-12-09 15:47:41,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:47:41,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:47:41,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:47:41,746 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:47:41,746 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:47:41,747 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-09 15:47:41,783 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/439af223f/12a500d28d244865aa76b9bb3fa65f16/FLAG6ab12c4bc [2018-12-09 15:47:42,237 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:47:42,237 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-09 15:47:42,241 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/439af223f/12a500d28d244865aa76b9bb3fa65f16/FLAG6ab12c4bc [2018-12-09 15:47:42,249 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/data/439af223f/12a500d28d244865aa76b9bb3fa65f16 [2018-12-09 15:47:42,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:47:42,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:47:42,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:47:42,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:47:42,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:47:42,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc28ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42, skipping insertion in model container [2018-12-09 15:47:42,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:47:42,277 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:47:42,387 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:47:42,393 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:47:42,421 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:47:42,438 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:47:42,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42 WrapperNode [2018-12-09 15:47:42,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:47:42,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:47:42,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:47:42,439 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:47:42,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:47:42,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:47:42,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:47:42,490 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:47:42,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... [2018-12-09 15:47:42,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:47:42,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:47:42,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:47:42,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:47:42,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 [2018-12-09 15:47:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-09 15:47:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:47:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:47:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 15:47:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:47:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:47:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 15:47:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:47:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 15:47:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-09 15:47:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 15:47:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 15:47:42,686 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:47:42,708 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:47:42,721 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:47:44,403 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:47:50,987 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:47:50,987 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 15:47:50,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:47:50 BoogieIcfgContainer [2018-12-09 15:47:50,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:47:50,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:47:50,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:47:50,990 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:47:50,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:47:42" (1/3) ... [2018-12-09 15:47:50,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d87c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:47:50, skipping insertion in model container [2018-12-09 15:47:50,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:47:42" (2/3) ... [2018-12-09 15:47:50,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d87c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:47:50, skipping insertion in model container [2018-12-09 15:47:50,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:47:50" (3/3) ... [2018-12-09 15:47:50,993 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b_true-unreach-call.c [2018-12-09 15:47:50,999 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:47:51,004 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:47:51,013 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:47:51,030 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 15:47:51,030 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:47:51,030 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:47:51,030 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:47:51,031 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:47:51,031 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:47:51,031 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:47:51,031 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:47:51,031 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:47:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-09 15:47:51,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 15:47:51,043 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:51,044 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:47:51,045 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:51,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:51,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1775699146, now seen corresponding path program 1 times [2018-12-09 15:47:51,051 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:47:51,051 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 [2018-12-09 15:47:51,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:51,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:47:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:47:51,174 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:47:51,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:47:51,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:47:51,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 15:47:51,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 15:47:51,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:47:51,196 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-09 15:47:51,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:47:51,210 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-12-09 15:47:51,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 15:47:51,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 15:47:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:47:51,217 INFO L225 Difference]: With dead ends: 100 [2018-12-09 15:47:51,217 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 15:47:51,219 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:47:51,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 15:47:51,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-09 15:47:51,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 15:47:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-09 15:47:51,243 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-12-09 15:47:51,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:47:51,243 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-09 15:47:51,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 15:47:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-09 15:47:51,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 15:47:51,244 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:51,244 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:47:51,245 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:51,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:51,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1046652015, now seen corresponding path program 1 times [2018-12-09 15:47:51,245 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:47:51,245 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 [2018-12-09 15:47:51,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:51,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:47:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:47:51,445 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:47:51,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:47:51,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:47:51,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:47:51,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:47:51,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:47:51,456 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-12-09 15:47:58,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:47:58,347 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2018-12-09 15:47:58,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 15:47:58,392 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 15:47:58,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:47:58,394 INFO L225 Difference]: With dead ends: 68 [2018-12-09 15:47:58,394 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 15:47:58,395 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 15:47:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 15:47:58,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2018-12-09 15:47:58,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 15:47:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-12-09 15:47:58,402 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 19 [2018-12-09 15:47:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:47:58,402 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-12-09 15:47:58,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:47:58,402 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-09 15:47:58,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 15:47:58,403 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:58,403 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:47:58,403 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:58,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:58,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1727555058, now seen corresponding path program 1 times [2018-12-09 15:47:58,404 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:47:58,404 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/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 [2018-12-09 15:47:58,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:58,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:47:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:47:58,550 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:47:58,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:47:58,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:47:58,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:47:58,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:47:58,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:47:58,559 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 7 states. [2018-12-09 15:48:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:48:06,532 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-12-09 15:48:06,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:48:06,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-09 15:48:06,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:48:06,533 INFO L225 Difference]: With dead ends: 56 [2018-12-09 15:48:06,534 INFO L226 Difference]: Without dead ends: 53 [2018-12-09 15:48:06,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:48:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-09 15:48:06,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-12-09 15:48:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 15:48:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2018-12-09 15:48:06,539 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 21 [2018-12-09 15:48:06,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:48:06,539 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2018-12-09 15:48:06,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:48:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2018-12-09 15:48:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 15:48:06,540 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:48:06,540 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:48:06,540 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:48:06,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:48:06,541 INFO L82 PathProgramCache]: Analyzing trace with hash -225183980, now seen corresponding path program 1 times [2018-12-09 15:48:06,541 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:48:06,541 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 15:48:06,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:48:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:48:07,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:48:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:48:07,554 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:48:07,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:48:07,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:48:07,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:48:07,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:48:07,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:48:07,572 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 7 states. [2018-12-09 15:48:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:48:15,750 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2018-12-09 15:48:15,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 15:48:15,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-09 15:48:15,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:48:15,801 INFO L225 Difference]: With dead ends: 73 [2018-12-09 15:48:15,801 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 15:48:15,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 15:48:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 15:48:15,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-09 15:48:15,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-09 15:48:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-12-09 15:48:15,806 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 23 [2018-12-09 15:48:15,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:48:15,806 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-12-09 15:48:15,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:48:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-12-09 15:48:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 15:48:15,807 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:48:15,807 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:48:15,807 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:48:15,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:48:15,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1139373451, now seen corresponding path program 1 times [2018-12-09 15:48:15,808 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:48:15,808 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 15:48:15,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:48:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:48:16,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:48:17,531 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-09 15:48:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:48:17,537 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:48:17,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:48:17,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:48:17,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:48:17,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:48:17,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 15:48:17,555 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 6 states. [2018-12-09 15:48:18,874 WARN L180 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-09 15:48:24,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:48:24,440 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2018-12-09 15:48:24,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:48:24,445 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-09 15:48:24,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:48:24,445 INFO L225 Difference]: With dead ends: 50 [2018-12-09 15:48:24,445 INFO L226 Difference]: Without dead ends: 30 [2018-12-09 15:48:24,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:48:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-09 15:48:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-09 15:48:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-09 15:48:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-12-09 15:48:24,448 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 24 [2018-12-09 15:48:24,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:48:24,448 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-12-09 15:48:24,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:48:24,449 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-12-09 15:48:24,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 15:48:24,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:48:24,449 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:48:24,449 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:48:24,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:48:24,449 INFO L82 PathProgramCache]: Analyzing trace with hash -267271278, now seen corresponding path program 1 times [2018-12-09 15:48:24,450 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:48:24,450 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 15:48:24,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:48:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:48:24,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:48:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:48:24,729 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:48:24,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:48:24,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-09 15:48:24,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 15:48:24,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 15:48:24,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:48:24,739 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 12 states. [2018-12-09 15:48:25,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:48:25,130 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-12-09 15:48:25,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 15:48:25,130 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-12-09 15:48:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:48:25,131 INFO L225 Difference]: With dead ends: 30 [2018-12-09 15:48:25,131 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:48:25,131 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-12-09 15:48:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:48:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:48:25,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:48:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:48:25,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-12-09 15:48:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:48:25,132 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:48:25,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 15:48:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:48:25,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:48:25,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:48:25,342 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2018-12-09 15:48:25,342 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2018-12-09 15:48:25,342 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-09 15:48:25,343 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2018-12-09 15:48:25,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:48:25,343 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) [2018-12-09 15:48:25,343 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 15:48:25,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:48:25,343 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 129 147) the Hoare annotation is: true [2018-12-09 15:48:25,343 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 129 147) no Hoare annotation was computed. [2018-12-09 15:48:25,343 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2018-12-09 15:48:25,343 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 15:48:25,343 INFO L448 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2018-12-09 15:48:25,343 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 129 147) no Hoare annotation was computed. [2018-12-09 15:48:25,344 INFO L444 ceAbstractionStarter]: At program point L141-1(line 141) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |main_#t~short29| (= main_~res~0 .cse0) (= main_~x~0 .cse0)))) [2018-12-09 15:48:25,344 INFO L448 ceAbstractionStarter]: For program point L141-2(line 141) no Hoare annotation was computed. [2018-12-09 15:48:25,344 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-12-09 15:48:25,344 INFO L448 ceAbstractionStarter]: For program point L138-1(line 138) no Hoare annotation was computed. [2018-12-09 15:48:25,344 INFO L448 ceAbstractionStarter]: For program point L141-4(lines 141 144) no Hoare annotation was computed. [2018-12-09 15:48:25,344 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 117 127) no Hoare annotation was computed. [2018-12-09 15:48:25,344 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2018-12-09 15:48:25,344 INFO L444 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-09 15:48:25,344 INFO L448 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2018-12-09 15:48:25,345 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 117 127) the Hoare annotation is: true [2018-12-09 15:48:25,345 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 117 127) no Hoare annotation was computed. [2018-12-09 15:48:25,345 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2018-12-09 15:48:25,345 INFO L451 ceAbstractionStarter]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2018-12-09 15:48:25,345 INFO L448 ceAbstractionStarter]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2018-12-09 15:48:25,345 INFO L448 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2018-12-09 15:48:25,345 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-12-09 15:48:25,345 INFO L444 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (= |atan_float_#in~x| atan_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-09 15:48:25,345 INFO L448 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2018-12-09 15:48:25,345 INFO L444 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (not (bvslt (bvand (_ bv2147483647 32) atan_float_~hx~0) (_ bv822083584 32))))) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand (_ bv2147483647 32) atan_float_~hx~0) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= |atan_float_#in~x| atan_float_~x)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L78-1(line 78) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2018-12-09 15:48:25,346 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2018-12-09 15:48:25,352 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,353 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,353 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,353 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,354 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,354 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,355 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,355 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,355 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,356 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,356 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,356 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,356 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,357 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,357 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,357 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:48:25 BoogieIcfgContainer [2018-12-09 15:48:25,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:48:25,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:48:25,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:48:25,359 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:48:25,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:47:50" (3/4) ... [2018-12-09 15:48:25,361 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 15:48:25,365 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 15:48:25,365 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-09 15:48:25,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 15:48:25,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-09 15:48:25,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-12-09 15:48:25,370 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-12-09 15:48:25,370 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-09 15:48:25,370 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 15:48:25,371 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 15:48:25,387 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) [2018-12-09 15:48:25,388 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) [2018-12-09 15:48:25,411 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f4d736db-7ae4-40df-aa8a-e56e06928e13/bin-2019/uautomizer/witness.graphml [2018-12-09 15:48:25,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:48:25,412 INFO L168 Benchmark]: Toolchain (without parser) took 43160.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.7 MB in the beginning and 795.8 MB in the end (delta: 148.9 MB). Peak memory consumption was 272.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:48:25,412 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:48:25,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.47 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 15:48:25,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-09 15:48:25,413 INFO L168 Benchmark]: Boogie Preprocessor took 27.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:48:25,413 INFO L168 Benchmark]: RCFGBuilder took 8470.96 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: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:48:25,414 INFO L168 Benchmark]: TraceAbstraction took 34369.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 802.7 MB in the end (delta: 263.1 MB). Peak memory consumption was 263.1 MB. Max. memory is 11.5 GB. [2018-12-09 15:48:25,414 INFO L168 Benchmark]: Witness Printer took 52.69 ms. Allocated memory is still 1.2 GB. Free memory was 802.7 MB in the beginning and 795.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:48:25,415 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.47 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 8470.96 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: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 34369.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 802.7 MB in the end (delta: 263.1 MB). Peak memory consumption was 263.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.69 ms. Allocated memory is still 1.2 GB. Free memory was 802.7 MB in the beginning and 795.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant [2018-12-09 15:48:25,417 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,418 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,418 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,418 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,418 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,418 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,418 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,419 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) - InvariantResult [Line: 120]: Loop Invariant [2018-12-09 15:48:25,419 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,419 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,419 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,419 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,420 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,420 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,420 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:48:25,420 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. SAFE Result, 34.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 30.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 243 SDtfs, 187 SDslu, 754 SDs, 0 SdLazy, 297 SolverSat, 21 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 27.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 23 PreInvPairs, 28 NumberOfFragments, 173 HoareAnnotationTreeSize, 23 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 152 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 128 ConstructedInterpolants, 14 QuantifiedInterpolants, 18944 SizeOfPredicates, 21 NumberOfNonLiveVariables, 818 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...