./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1271b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1271b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 d29f12e66e15a9c752fce15327a254c30da4b28a ......................................................................................................................................................................................................................................................................................................................................................... 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_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1271b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 d29f12e66e15a9c752fce15327a254c30da4b28a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:02:20,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:02:20,870 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:02:20,877 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:02:20,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:02:20,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:02:20,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:02:20,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:02:20,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:02:20,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:02:20,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:02:20,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:02:20,884 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:02:20,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:02:20,886 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:02:20,886 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:02:20,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:02:20,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:02:20,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:02:20,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:02:20,892 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:02:20,894 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:02:20,895 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:02:20,896 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:02:20,896 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:02:20,896 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:02:20,898 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:02:20,899 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:02:20,899 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:02:20,900 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:02:20,900 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:02:20,901 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:02:20,901 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:02:20,901 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:02:20,902 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:02:20,903 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:02:20,903 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 11:02:20,914 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:02:20,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:02:20,915 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:02:20,915 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 11:02:20,915 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:02:20,915 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:02:20,915 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:02:20,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:02:20,916 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:02:20,916 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:02:20,916 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:02:20,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:02:20,916 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:02:20,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:02:20,917 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:02:20,917 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:02:20,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:02:20,918 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:02:20,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:02:20,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:02:20,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:02:20,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:02:20,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:02:20,920 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_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 -> d29f12e66e15a9c752fce15327a254c30da4b28a [2018-11-18 11:02:20,942 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:02:20,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:02:20,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:02:20,954 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:02:20,954 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:02:20,955 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1271b_true-unreach-call.c [2018-11-18 11:02:20,993 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/97bd9a9c0/c6e902253cc345c1a704b4953f5dece4/FLAGed5fcc836 [2018-11-18 11:02:21,330 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:02:21,331 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/sv-benchmarks/c/float-newlib/float_req_bl_1271b_true-unreach-call.c [2018-11-18 11:02:21,335 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/97bd9a9c0/c6e902253cc345c1a704b4953f5dece4/FLAGed5fcc836 [2018-11-18 11:02:21,752 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/97bd9a9c0/c6e902253cc345c1a704b4953f5dece4 [2018-11-18 11:02:21,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:02:21,755 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:02:21,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:21,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:02:21,759 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:02:21,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:21" (1/1) ... [2018-11-18 11:02:21,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7601ec79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:21, skipping insertion in model container [2018-11-18 11:02:21,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:21" (1/1) ... [2018-11-18 11:02:21,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:02:21,792 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:02:21,964 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:21,966 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:02:22,001 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:22,020 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:02:22,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22 WrapperNode [2018-11-18 11:02:22,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:22,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:02:22,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:02:22,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:02:22,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... [2018-11-18 11:02:22,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... [2018-11-18 11:02:22,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... [2018-11-18 11:02:22,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... [2018-11-18 11:02:22,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... [2018-11-18 11:02:22,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... [2018-11-18 11:02:22,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... [2018-11-18 11:02:22,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:02:22,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:02:22,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:02:22,116 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:02:22,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 11:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2018-11-18 11:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 11:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-11-18 11:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 11:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 11:02:22,544 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:02:22,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:22 BoogieIcfgContainer [2018-11-18 11:02:22,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:02:22,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:02:22,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:02:22,548 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:02:22,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:02:21" (1/3) ... [2018-11-18 11:02:22,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1785cc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:02:22, skipping insertion in model container [2018-11-18 11:02:22,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:22" (2/3) ... [2018-11-18 11:02:22,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1785cc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:02:22, skipping insertion in model container [2018-11-18 11:02:22,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:22" (3/3) ... [2018-11-18 11:02:22,550 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b_true-unreach-call.c [2018-11-18 11:02:22,559 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:02:22,565 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:02:22,575 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:02:22,594 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:02:22,594 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:02:22,594 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:02:22,594 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:02:22,595 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:02:22,595 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:02:22,595 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:02:22,595 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:02:22,595 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:02:22,607 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2018-11-18 11:02:22,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 11:02:22,611 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:02:22,612 INFO L375 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, 1, 1, 1, 1, 1] [2018-11-18 11:02:22,613 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:02:22,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:22,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1144088505, now seen corresponding path program 1 times [2018-11-18 11:02:22,618 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:22,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:22,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:22,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:22,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:02:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:02:22,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:02:22,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:02:22,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:02:22,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:02:22,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:02:22,739 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2018-11-18 11:02:22,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:02:22,763 INFO L93 Difference]: Finished difference Result 214 states and 333 transitions. [2018-11-18 11:02:22,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:02:22,764 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 34 [2018-11-18 11:02:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:02:22,770 INFO L225 Difference]: With dead ends: 214 [2018-11-18 11:02:22,770 INFO L226 Difference]: Without dead ends: 106 [2018-11-18 11:02:22,774 INFO L604 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 [2018-11-18 11:02:22,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-18 11:02:22,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-11-18 11:02:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-11-18 11:02:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 128 transitions. [2018-11-18 11:02:22,806 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 128 transitions. Word has length 34 [2018-11-18 11:02:22,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:02:22,807 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 128 transitions. [2018-11-18 11:02:22,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:02:22,807 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 128 transitions. [2018-11-18 11:02:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 11:02:22,808 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:02:22,808 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:22,809 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:02:22,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:22,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1073549159, now seen corresponding path program 1 times [2018-11-18 11:02:22,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:22,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:22,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:22,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:22,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:22,925 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:02:22,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:02:22 BoogieIcfgContainer [2018-11-18 11:02:22,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:02:22,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:02:22,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:02:22,947 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:02:22,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:22" (3/4) ... [2018-11-18 11:02:22,950 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:02:22,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:02:22,950 INFO L168 Benchmark]: Toolchain (without parser) took 1195.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 958.1 MB in the beginning and 1.0 GB in the end (delta: -53.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:22,952 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:02:22,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.22 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 941.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:22,953 INFO L168 Benchmark]: Boogie Preprocessor took 93.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:22,953 INFO L168 Benchmark]: RCFGBuilder took 428.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:22,954 INFO L168 Benchmark]: TraceAbstraction took 401.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:22,954 INFO L168 Benchmark]: Witness Printer took 3.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:22,957 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.22 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 941.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 428.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 401.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 239]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 211, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 96. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=10737418247, \old(tiny_sqrt)=10737418253, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L232] float x = __VERIFIER_nondet_float(); [L233] float y = 0.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243] [L235] CALL isfinite_float(x) VAL [\old(x)=10737418243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L215] __int32_t ix; VAL [\old(x)=10737418243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243] [L217] FCALL ieee_float_shape_type gf_u; [L218] FCALL gf_u.value = (x) [L219] EXPR, FCALL gf_u.word [L219] (ix) = gf_u.word [L220] COND FALSE !(0) VAL [\old(x)=10737418243, ix=2, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243] [L221] ix &= 0x7fffffff [L222] RET return (((ix) < 0x7f800000L)); VAL [\old(x)=10737418243, \result=1, ix=2139095039, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243] [L235] isfinite_float(x) VAL [isfinite_float(x)=1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243] [L235] COND TRUE isfinite_float(x) [L236] CALL, EXPR __ieee754_hypotf(x, y) VAL [\old(x)=10737418243, \old(y)=10737418254, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L82] float a = x, b = y, t1, t2, y1, y2, w; [L83] __int32_t j, k, ha, hb; VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418243, b=10737418254, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L86] FCALL ieee_float_shape_type gf_u; [L87] FCALL gf_u.value = (x) [L88] EXPR, FCALL gf_u.word [L88] (ha) = gf_u.word [L89] COND FALSE !(0) VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418243, b=10737418254, ha=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L90] ha &= 0x7fffffffL VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418243, b=10737418254, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L92] FCALL ieee_float_shape_type gf_u; [L93] FCALL gf_u.value = (y) [L94] EXPR, FCALL gf_u.word [L94] (hb) = gf_u.word [L95] COND FALSE !(0) VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418243, b=10737418254, hb=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L96] hb &= 0x7fffffffL VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418243, b=10737418254, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L97] COND TRUE hb > ha [L98] a = y [L99] b = x [L100] j = ha [L101] ha = hb [L102] hb = j VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418254, b=10737418243, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L108] FCALL ieee_float_shape_type sf_u; [L109] FCALL sf_u.word = (ha) [L110] EXPR, FCALL sf_u.value [L110] (a) = sf_u.value [L111] COND FALSE !(0) VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418246, b=10737418243, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L113] FCALL ieee_float_shape_type sf_u; [L114] FCALL sf_u.word = (hb) [L115] EXPR, FCALL sf_u.value [L115] (b) = sf_u.value [L116] COND FALSE !(0) VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418246, b=10737418251, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L117] COND TRUE (ha - hb) > 0xf000000L [L118] RET return a + b; VAL [\old(x)=10737418243, \old(y)=10737418254, a=10737418246, b=10737418251, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L236] EXPR __ieee754_hypotf(x, y) VAL [__ieee754_hypotf(x, y)=10737418256, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L236] float res = __ieee754_hypotf(x, y); [L238] CALL, EXPR isnan_float(res) VAL [\old(x)=10737418256, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L211] RET return x != x; VAL [\old(x)=10737418256, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=10737418256] [L238] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=10737418256, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] [L238] COND TRUE !isnan_float(res) [L239] __VERIFIER_error() VAL [one_sqrt=1, res=10737418256, tiny_sqrt=1/1000000000000000000000000000000, x=10737418243, y=10737418254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 111 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 134 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=111occurred 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, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1089 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 0.1.23-5842f4b [2018-11-18 11:02:24,475 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:02:24,477 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:02:24,484 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:02:24,484 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:02:24,485 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:02:24,486 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:02:24,487 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:02:24,488 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:02:24,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:02:24,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:02:24,490 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:02:24,491 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:02:24,492 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:02:24,492 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:02:24,493 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:02:24,494 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:02:24,495 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:02:24,497 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:02:24,498 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:02:24,499 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:02:24,500 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:02:24,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:02:24,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:02:24,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:02:24,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:02:24,503 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:02:24,504 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:02:24,504 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:02:24,505 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:02:24,505 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:02:24,506 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:02:24,506 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:02:24,506 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:02:24,507 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:02:24,508 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:02:24,508 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 11:02:24,519 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:02:24,519 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:02:24,520 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:02:24,520 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:02:24,521 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:02:24,521 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:02:24,521 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:02:24,521 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:02:24,521 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:02:24,522 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:02:24,522 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:02:24,522 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:02:24,522 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:02:24,522 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:02:24,522 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:02:24,522 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:02:24,523 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:02:24,523 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:02:24,523 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:02:24,523 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:02:24,523 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:02:24,523 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:02:24,524 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:02:24,524 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:02:24,524 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:02:24,524 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:02:24,524 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:02:24,524 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:02:24,524 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 11:02:24,525 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:02:24,525 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:02:24,525 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:02:24,525 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_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 -> d29f12e66e15a9c752fce15327a254c30da4b28a [2018-11-18 11:02:24,553 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:02:24,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:02:24,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:02:24,565 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:02:24,565 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:02:24,566 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1271b_true-unreach-call.c [2018-11-18 11:02:24,605 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/22640c6e7/8ab1c380b36d40678bae02a07776bf9d/FLAG8cdf256ca [2018-11-18 11:02:25,017 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:02:25,018 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/sv-benchmarks/c/float-newlib/float_req_bl_1271b_true-unreach-call.c [2018-11-18 11:02:25,022 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/22640c6e7/8ab1c380b36d40678bae02a07776bf9d/FLAG8cdf256ca [2018-11-18 11:02:25,031 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/data/22640c6e7/8ab1c380b36d40678bae02a07776bf9d [2018-11-18 11:02:25,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:02:25,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:02:25,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:25,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:02:25,038 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:02:25,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c22ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25, skipping insertion in model container [2018-11-18 11:02:25,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:02:25,073 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:02:25,236 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:25,240 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:02:25,279 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:25,302 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:02:25,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25 WrapperNode [2018-11-18 11:02:25,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:25,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:02:25,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:02:25,303 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:02:25,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... [2018-11-18 11:02:25,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:02:25,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:02:25,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:02:25,402 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:02:25,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:02:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:02:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:02:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 11:02:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2018-11-18 11:02:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 11:02:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-11-18 11:02:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:02:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:02:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 11:02:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 11:02:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-11-18 11:02:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:02:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:02:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:02:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 11:02:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 11:02:25,573 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:02:25,902 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:02:26,552 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:02:26,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:26 BoogieIcfgContainer [2018-11-18 11:02:26,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:02:26,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:02:26,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:02:26,556 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:02:26,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:02:25" (1/3) ... [2018-11-18 11:02:26,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649b76f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:02:26, skipping insertion in model container [2018-11-18 11:02:26,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:25" (2/3) ... [2018-11-18 11:02:26,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649b76f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:02:26, skipping insertion in model container [2018-11-18 11:02:26,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:26" (3/3) ... [2018-11-18 11:02:26,559 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b_true-unreach-call.c [2018-11-18 11:02:26,565 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:02:26,570 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:02:26,580 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:02:26,601 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:02:26,602 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:02:26,602 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:02:26,602 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:02:26,602 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:02:26,602 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:02:26,602 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:02:26,602 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:02:26,602 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:02:26,616 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2018-11-18 11:02:26,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 11:02:26,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:02:26,622 INFO L375 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, 1, 1, 1] [2018-11-18 11:02:26,624 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:02:26,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:26,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1543648080, now seen corresponding path program 1 times [2018-11-18 11:02:26,631 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:02:26,631 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:02:26,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:02:26,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:02:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:02:26,721 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:02:26,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:02:26,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:02:26,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:02:26,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:02:26,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:02:26,744 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 2 states. [2018-11-18 11:02:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:02:26,770 INFO L93 Difference]: Finished difference Result 210 states and 329 transitions. [2018-11-18 11:02:26,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:02:26,771 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2018-11-18 11:02:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:02:26,779 INFO L225 Difference]: With dead ends: 210 [2018-11-18 11:02:26,779 INFO L226 Difference]: Without dead ends: 104 [2018-11-18 11:02:26,782 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:02:26,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-18 11:02:26,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-18 11:02:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-18 11:02:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2018-11-18 11:02:26,818 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 32 [2018-11-18 11:02:26,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:02:26,818 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2018-11-18 11:02:26,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:02:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2018-11-18 11:02:26,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 11:02:26,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:02:26,820 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:26,820 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:02:26,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:26,820 INFO L82 PathProgramCache]: Analyzing trace with hash 970822700, now seen corresponding path program 1 times [2018-11-18 11:02:26,821 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:02:26,821 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:02:26,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:02:26,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:02:29,253 WARN L180 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-18 11:02:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:02:32,345 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:02:32,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:02:32,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-18 11:02:32,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 11:02:32,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 11:02:32,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:02:32,359 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand 13 states. [2018-11-18 11:02:43,490 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-11-18 11:02:48,663 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-18 11:02:57,239 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-18 11:03:12,834 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-11-18 11:04:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:04:01,525 INFO L93 Difference]: Finished difference Result 190 states and 234 transitions. [2018-11-18 11:04:01,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 11:04:01,568 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2018-11-18 11:04:01,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:04:01,571 INFO L225 Difference]: With dead ends: 190 [2018-11-18 11:04:01,571 INFO L226 Difference]: Without dead ends: 183 [2018-11-18 11:04:01,573 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=69, Invalid=392, Unknown=1, NotChecked=0, Total=462 [2018-11-18 11:04:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-11-18 11:04:01,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 112. [2018-11-18 11:04:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-18 11:04:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 136 transitions. [2018-11-18 11:04:01,588 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 136 transitions. Word has length 37 [2018-11-18 11:04:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:04:01,588 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 136 transitions. [2018-11-18 11:04:01,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 11:04:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 136 transitions. [2018-11-18 11:04:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 11:04:01,590 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:04:01,590 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:04:01,590 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:04:01,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:04:01,590 INFO L82 PathProgramCache]: Analyzing trace with hash -309040978, now seen corresponding path program 1 times [2018-11-18 11:04:01,591 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:04:01,591 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:04:01,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:04:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:04:01,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:04:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:04:01,914 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:04:01,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:04:01,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 11:04:01,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:04:01,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:04:01,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:04:01,924 INFO L87 Difference]: Start difference. First operand 112 states and 136 transitions. Second operand 8 states. [2018-11-18 11:04:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:04:39,022 INFO L93 Difference]: Finished difference Result 220 states and 266 transitions. [2018-11-18 11:04:39,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:04:39,061 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-18 11:04:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:04:39,063 INFO L225 Difference]: With dead ends: 220 [2018-11-18 11:04:39,063 INFO L226 Difference]: Without dead ends: 173 [2018-11-18 11:04:39,064 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-11-18 11:04:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-11-18 11:04:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 120. [2018-11-18 11:04:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-18 11:04:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2018-11-18 11:04:39,082 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 37 [2018-11-18 11:04:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:04:39,082 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2018-11-18 11:04:39,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:04:39,082 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2018-11-18 11:04:39,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 11:04:39,084 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:04:39,084 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:04:39,084 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:04:39,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:04:39,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1333316845, now seen corresponding path program 1 times [2018-11-18 11:04:39,085 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:04:39,085 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:04:39,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:04:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:04:39,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:04:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:04:39,269 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:04:39,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:04:39,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 11:04:39,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:04:39,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:04:39,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:04:39,277 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand 8 states. [2018-11-18 11:05:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:05:07,267 INFO L93 Difference]: Finished difference Result 188 states and 224 transitions. [2018-11-18 11:05:07,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 11:05:07,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2018-11-18 11:05:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:05:07,317 INFO L225 Difference]: With dead ends: 188 [2018-11-18 11:05:07,317 INFO L226 Difference]: Without dead ends: 170 [2018-11-18 11:05:07,318 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:05:07,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-11-18 11:05:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 123. [2018-11-18 11:05:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-18 11:05:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 148 transitions. [2018-11-18 11:05:07,332 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 148 transitions. Word has length 42 [2018-11-18 11:05:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:05:07,333 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 148 transitions. [2018-11-18 11:05:07,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:05:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 148 transitions. [2018-11-18 11:05:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 11:05:07,334 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:05:07,334 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:05:07,335 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:05:07,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:05:07,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1591482283, now seen corresponding path program 1 times [2018-11-18 11:05:07,335 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:05:07,335 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:05:07,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:05:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:05:07,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:05:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:05:07,725 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:05:07,735 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:05:07,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 11:05:07,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 11:05:07,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 11:05:07,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-18 11:05:07,736 INFO L87 Difference]: Start difference. First operand 123 states and 148 transitions. Second operand 12 states. [2018-11-18 11:05:29,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:05:29,433 INFO L93 Difference]: Finished difference Result 185 states and 218 transitions. [2018-11-18 11:05:29,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 11:05:29,472 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-11-18 11:05:29,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:05:29,473 INFO L225 Difference]: With dead ends: 185 [2018-11-18 11:05:29,473 INFO L226 Difference]: Without dead ends: 170 [2018-11-18 11:05:29,474 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2018-11-18 11:05:29,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-11-18 11:05:29,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 120. [2018-11-18 11:05:29,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-18 11:05:29,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 142 transitions. [2018-11-18 11:05:29,490 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 142 transitions. Word has length 42 [2018-11-18 11:05:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:05:29,490 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 142 transitions. [2018-11-18 11:05:29,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 11:05:29,490 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 142 transitions. [2018-11-18 11:05:29,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 11:05:29,491 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:05:29,492 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:05:29,492 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:05:29,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:05:29,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2002420435, now seen corresponding path program 1 times [2018-11-18 11:05:29,492 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:05:29,492 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/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 [2018-11-18 11:05:29,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:05:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:05:29,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:05:29,941 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2018-11-18 11:05:31,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:05:31,480 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:05:31,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:05:31,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-18 11:05:31,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 11:05:31,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 11:05:31,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:05:31,489 INFO L87 Difference]: Start difference. First operand 120 states and 142 transitions. Second operand 13 states. [2018-11-18 11:05:32,984 WARN L180 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2018-11-18 11:05:34,819 WARN L180 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2018-11-18 11:05:37,725 WARN L180 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2018-11-18 11:05:55,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:05:55,354 INFO L93 Difference]: Finished difference Result 186 states and 220 transitions. [2018-11-18 11:05:55,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 11:05:55,355 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2018-11-18 11:05:55,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:05:55,355 INFO L225 Difference]: With dead ends: 186 [2018-11-18 11:05:55,356 INFO L226 Difference]: Without dead ends: 176 [2018-11-18 11:05:55,356 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-11-18 11:05:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-11-18 11:05:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 117. [2018-11-18 11:05:55,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-18 11:05:55,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2018-11-18 11:05:55,368 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 42 [2018-11-18 11:05:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:05:55,368 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2018-11-18 11:05:55,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 11:05:55,368 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2018-11-18 11:05:55,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 11:05:55,370 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:05:55,370 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:05:55,370 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:05:55,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:05:55,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1749801007, now seen corresponding path program 1 times [2018-11-18 11:05:55,370 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:05:55,370 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 11:05:55,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:05:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:05:55,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:05:55,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:05:55,629 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:05:55,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:05:55,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:05:55,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:05:55,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:05:55,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:05:55,639 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand 7 states. [2018-11-18 11:06:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:06:07,238 INFO L93 Difference]: Finished difference Result 224 states and 267 transitions. [2018-11-18 11:06:07,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:06:07,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2018-11-18 11:06:07,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:06:07,272 INFO L225 Difference]: With dead ends: 224 [2018-11-18 11:06:07,272 INFO L226 Difference]: Without dead ends: 158 [2018-11-18 11:06:07,273 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:06:07,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-18 11:06:07,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 116. [2018-11-18 11:06:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-11-18 11:06:07,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2018-11-18 11:06:07,291 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 45 [2018-11-18 11:06:07,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:06:07,291 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2018-11-18 11:06:07,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:06:07,292 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2018-11-18 11:06:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 11:06:07,292 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:06:07,293 INFO L375 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, 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] [2018-11-18 11:06:07,293 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:06:07,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:06:07,293 INFO L82 PathProgramCache]: Analyzing trace with hash 34102254, now seen corresponding path program 1 times [2018-11-18 11:06:07,293 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:06:07,294 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-18 11:06:07,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:06:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:06:07,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:06:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:06:07,805 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:06:07,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:06:07,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 11:06:07,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:06:07,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:06:07,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:06:07,821 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand 8 states. [2018-11-18 11:06:29,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:06:29,856 INFO L93 Difference]: Finished difference Result 199 states and 231 transitions. [2018-11-18 11:06:29,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 11:06:29,889 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2018-11-18 11:06:29,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:06:29,890 INFO L225 Difference]: With dead ends: 199 [2018-11-18 11:06:29,890 INFO L226 Difference]: Without dead ends: 121 [2018-11-18 11:06:29,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:06:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-11-18 11:06:29,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 98. [2018-11-18 11:06:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-18 11:06:29,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2018-11-18 11:06:29,905 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 54 [2018-11-18 11:06:29,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:06:29,905 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2018-11-18 11:06:29,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:06:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2018-11-18 11:06:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 11:06:29,906 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:06:29,906 INFO L375 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, 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] [2018-11-18 11:06:29,906 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:06:29,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:06:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash 308861868, now seen corresponding path program 1 times [2018-11-18 11:06:29,907 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:06:29,907 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-18 11:06:29,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:06:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:06:30,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:06:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:06:30,589 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:06:30,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:06:30,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 11:06:30,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:06:30,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:06:30,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:06:30,601 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand 9 states. [2018-11-18 11:06:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:06:45,080 INFO L93 Difference]: Finished difference Result 129 states and 147 transitions. [2018-11-18 11:06:45,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 11:06:45,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-11-18 11:06:45,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:06:45,082 INFO L225 Difference]: With dead ends: 129 [2018-11-18 11:06:45,082 INFO L226 Difference]: Without dead ends: 99 [2018-11-18 11:06:45,082 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:06:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-11-18 11:06:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2018-11-18 11:06:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-18 11:06:45,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2018-11-18 11:06:45,098 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 54 [2018-11-18 11:06:45,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:06:45,098 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2018-11-18 11:06:45,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:06:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2018-11-18 11:06:45,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 11:06:45,099 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:06:45,099 INFO L375 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, 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, 1] [2018-11-18 11:06:45,099 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:06:45,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:06:45,100 INFO L82 PathProgramCache]: Analyzing trace with hash -920876648, now seen corresponding path program 1 times [2018-11-18 11:06:45,100 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:06:45,100 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-18 11:06:45,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:06:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:06:45,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:06:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:06:45,484 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:06:45,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:06:45,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:06:45,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:06:45,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:06:45,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:06:45,495 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 4 states. [2018-11-18 11:06:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:06:49,694 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2018-11-18 11:06:49,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:06:49,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-11-18 11:06:49,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:06:49,733 INFO L225 Difference]: With dead ends: 102 [2018-11-18 11:06:49,733 INFO L226 Difference]: Without dead ends: 92 [2018-11-18 11:06:49,733 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:06:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-11-18 11:06:49,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-11-18 11:06:49,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-18 11:06:49,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2018-11-18 11:06:49,749 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 59 [2018-11-18 11:06:49,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:06:49,749 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2018-11-18 11:06:49,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:06:49,749 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2018-11-18 11:06:49,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 11:06:49,750 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:06:49,750 INFO L375 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, 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, 1, 1, 1, 1] [2018-11-18 11:06:49,750 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:06:49,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:06:49,750 INFO L82 PathProgramCache]: Analyzing trace with hash 38940339, now seen corresponding path program 1 times [2018-11-18 11:06:49,751 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:06:49,751 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-11-18 11:06:49,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:06:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:06:50,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:06:50,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:06:50,295 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:06:50,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:06:50,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 11:06:50,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:06:50,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:06:50,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:06:50,308 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand 9 states. [2018-11-18 11:07:13,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:07:13,794 INFO L93 Difference]: Finished difference Result 133 states and 148 transitions. [2018-11-18 11:07:13,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:07:13,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2018-11-18 11:07:13,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:07:13,834 INFO L225 Difference]: With dead ends: 133 [2018-11-18 11:07:13,834 INFO L226 Difference]: Without dead ends: 92 [2018-11-18 11:07:13,834 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:07:13,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-11-18 11:07:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-11-18 11:07:13,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-18 11:07:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2018-11-18 11:07:13,851 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 62 [2018-11-18 11:07:13,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:07:13,852 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2018-11-18 11:07:13,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:07:13,852 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2018-11-18 11:07:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 11:07:13,852 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:07:13,852 INFO L375 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, 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, 1, 1, 1, 1] [2018-11-18 11:07:13,853 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:07:13,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:07:13,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1332866959, now seen corresponding path program 1 times [2018-11-18 11:07:13,853 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:07:13,853 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-11-18 11:07:13,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:07:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:07:14,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:07:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:07:14,597 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:07:14,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:07:14,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 11:07:14,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:07:14,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:07:14,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:07:14,609 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand 9 states. [2018-11-18 11:07:29,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:07:29,000 INFO L93 Difference]: Finished difference Result 106 states and 117 transitions. [2018-11-18 11:07:29,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:07:29,001 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2018-11-18 11:07:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:07:29,002 INFO L225 Difference]: With dead ends: 106 [2018-11-18 11:07:29,002 INFO L226 Difference]: Without dead ends: 87 [2018-11-18 11:07:29,002 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:07:29,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-11-18 11:07:29,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-11-18 11:07:29,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-11-18 11:07:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2018-11-18 11:07:29,010 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 62 [2018-11-18 11:07:29,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:07:29,010 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2018-11-18 11:07:29,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:07:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2018-11-18 11:07:29,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 11:07:29,011 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:07:29,011 INFO L375 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, 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:07:29,011 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:07:29,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:07:29,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1162112627, now seen corresponding path program 1 times [2018-11-18 11:07:29,012 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:07:29,012 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b8c0fb4-4ac5-4e4a-8987-0d17b757e7e8/bin-2019/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-11-18 11:07:29,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:07:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:07:29,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:07:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:07:29,778 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:07:29,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:07:29,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 11:07:29,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:07:29,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:07:29,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:07:29,791 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand 9 states. [2018-11-18 11:07:38,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:07:38,518 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2018-11-18 11:07:38,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:07:38,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2018-11-18 11:07:38,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:07:38,561 INFO L225 Difference]: With dead ends: 87 [2018-11-18 11:07:38,561 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:07:38,562 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:07:38,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:07:38,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:07:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:07:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:07:38,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-11-18 11:07:38,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:07:38,567 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:07:38,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:07:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:07:38,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:07:38,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:07:38,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:07:38,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:07:39,463 WARN L180 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2018-11-18 11:07:39,873 WARN L180 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 42 [2018-11-18 11:07:40,288 WARN L180 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 42 [2018-11-18 11:07:40,698 WARN L180 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2018-11-18 11:07:41,184 WARN L180 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 42 [2018-11-18 11:07:41,664 WARN L180 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 42 [2018-11-18 11:07:41,984 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 42 [2018-11-18 11:07:42,242 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 24 [2018-11-18 11:07:42,698 WARN L180 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 42 [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 211) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 211) the Hoare annotation is: true [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 211) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point L216-1(lines 216 220) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L421 ceAbstractionStarter]: At program point L216-3(lines 216 220) the Hoare annotation is: (= isfinite_float_~x |isfinite_float_#in~x|) [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point L216-4(lines 216 220) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point isfinite_floatFINAL(lines 214 223) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L428 ceAbstractionStarter]: At program point isfinite_floatENTRY(lines 214 223) the Hoare annotation is: true [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point isfinite_floatEXIT(lines 214 223) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:07:42,744 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 11:07:42,745 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 225 245) the Hoare annotation is: true [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 225 245) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 239) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point L239(line 239) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L421 ceAbstractionStarter]: At program point L238(line 238) the Hoare annotation is: (and (exists ((__ieee754_hypotf_~b~0 (_ FloatingPoint 8 24)) (v___ieee754_hypotf_~hb~0_25 (_ BitVec 32))) (and (= main_~res~0 (fp.add roundNearestTiesToEven (let ((.cse0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_25))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) __ieee754_hypotf_~b~0)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_25) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_25) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_25)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))) (= main_~y~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point L238-1(lines 238 241) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 225 245) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L421 ceAbstractionStarter]: At program point L236(line 236) the Hoare annotation is: (and (exists ((v_isfinite_float_~ix~1_5 (_ BitVec 32))) (and (= main_~x~0 (fp ((_ extract 31 31) v_isfinite_float_~ix~1_5) ((_ extract 30 23) v_isfinite_float_~ix~1_5) ((_ extract 22 0) v_isfinite_float_~ix~1_5))) (bvslt (bvand (_ bv2147483647 32) v_isfinite_float_~ix~1_5) (_ bv2139095040 32)))) (= main_~y~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-11-18 11:07:42,745 INFO L421 ceAbstractionStarter]: At program point L235(line 235) the Hoare annotation is: (= main_~y~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point L236-1(line 236) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point L235-1(lines 235 242) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point L235-3(lines 235 242) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point L85-1(lines 85 89) no Hoare annotation was computed. [2018-11-18 11:07:42,745 INFO L421 ceAbstractionStarter]: At program point L85-3(lines 85 89) the Hoare annotation is: (and (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y) (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x)) [2018-11-18 11:07:42,745 INFO L425 ceAbstractionStarter]: For program point L85-4(lines 85 89) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L185-1(lines 185 189) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L421 ceAbstractionStarter]: At program point L185-3(lines 185 189) the Hoare annotation is: (let ((.cse0 (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y))) (or (and .cse0 (exists ((v___ieee754_hypotf_~hb~0_27 (_ BitVec 32)) (v___ieee754_hypotf_~ha~0_24 (_ BitVec 32))) (and (bvsgt (bvadd (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_24) (bvneg (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_27))) (_ bv251658240 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_27) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_27) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_27)) |__ieee754_hypotf_#in~y|)))) (and (= (_ bv68 32) __ieee754_hypotf_~k~0) .cse0 (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x) (exists ((v___ieee754_hypotf_~ha~0_34 (_ BitVec 32)) (v___ieee754_hypotf_~hb~0_41 (_ BitVec 32))) (and (= |__ieee754_hypotf_#in~y| (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_41) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_41) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_41))) (bvslt v___ieee754_hypotf_~ha~0_34 (_ bv2139095040 32)) (not (bvsgt (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_41) v___ieee754_hypotf_~ha~0_34))))))) [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L185-4(lines 185 189) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point __ieee754_hypotfFINAL(lines 81 208) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point __ieee754_hypotfEXIT(lines 81 208) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L121(lines 121 144) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L121-1(lines 81 208) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 129) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L139(lines 139 143) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L139-2(lines 121 144) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 111) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L107-2(lines 81 208) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 125) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L91-1(lines 91 95) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L124-2(lines 122 129) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L421 ceAbstractionStarter]: At program point L91-3(lines 91 95) the Hoare annotation is: (and (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y) (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x) (exists ((v___ieee754_hypotf_~ha~0_25 (_ BitVec 32))) (and (= |__ieee754_hypotf_#in~x| (fp ((_ extract 31 31) v___ieee754_hypotf_~ha~0_25) ((_ extract 30 23) v___ieee754_hypotf_~ha~0_25) ((_ extract 22 0) v___ieee754_hypotf_~ha~0_25))) (= __ieee754_hypotf_~ha~0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_25))))) [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L91-4(lines 91 95) no Hoare annotation was computed. [2018-11-18 11:07:42,746 INFO L425 ceAbstractionStarter]: For program point L191-1(lines 191 195) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L421 ceAbstractionStarter]: At program point L191-3(lines 191 195) the Hoare annotation is: (let ((.cse0 (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y))) (or (and .cse0 (exists ((v___ieee754_hypotf_~hb~0_27 (_ BitVec 32)) (v___ieee754_hypotf_~ha~0_24 (_ BitVec 32))) (and (bvsgt (bvadd (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_24) (bvneg (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_27))) (_ bv251658240 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_27) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_27) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_27)) |__ieee754_hypotf_#in~y|)))) (and (= (_ bv68 32) __ieee754_hypotf_~k~0) .cse0 (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x) (exists ((v___ieee754_hypotf_~ha~0_34 (_ BitVec 32)) (v___ieee754_hypotf_~hb~0_41 (_ BitVec 32))) (and (= |__ieee754_hypotf_#in~y| (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_41) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_41) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_41))) (bvslt v___ieee754_hypotf_~ha~0_34 (_ bv2139095040 32)) (not (bvsgt (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_41) v___ieee754_hypotf_~ha~0_34))))))) [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L191-4(lines 191 195) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L175(lines 175 198) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L175-2(lines 81 208) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 126 127) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L176-1(lines 176 180) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L421 ceAbstractionStarter]: At program point L176-3(lines 176 180) the Hoare annotation is: (let ((.cse0 (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y))) (or (and .cse0 (exists ((v___ieee754_hypotf_~hb~0_27 (_ BitVec 32)) (v___ieee754_hypotf_~ha~0_24 (_ BitVec 32))) (and (bvsgt (bvadd (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_24) (bvneg (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_27))) (_ bv251658240 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_27) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_27) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_27)) |__ieee754_hypotf_#in~y|)))) (and (= (_ bv68 32) __ieee754_hypotf_~k~0) (exists ((v___ieee754_hypotf_~hb~0_38 (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_38))) (and (bvslt .cse1 (_ bv2139095040 32)) (bvsgt .cse1 (_ bv1484783616 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_38) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_38) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_38)) |__ieee754_hypotf_#in~y|)))) (and .cse0 (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x))))) [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L176-4(lines 176 180) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L161-1(lines 161 165) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L421 ceAbstractionStarter]: At program point L161-3(lines 161 165) the Hoare annotation is: (and (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y) (exists ((v___ieee754_hypotf_~hb~0_27 (_ BitVec 32)) (v___ieee754_hypotf_~ha~0_24 (_ BitVec 32))) (and (bvsgt (bvadd (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_24) (bvneg (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_27))) (_ bv251658240 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_27) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_27) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_27)) |__ieee754_hypotf_#in~y|)))) [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L145(lines 145 172) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L112(lines 112 116) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L112-2(lines 81 208) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L112-3(lines 81 208) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L428 ceAbstractionStarter]: At program point __ieee754_hypotfENTRY(lines 81 208) the Hoare annotation is: true [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L146(lines 146 171) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 106) no Hoare annotation was computed. [2018-11-18 11:07:42,747 INFO L421 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: (let ((.cse0 (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y))) (or (and .cse0 (exists ((v___ieee754_hypotf_~hb~0_27 (_ BitVec 32)) (v___ieee754_hypotf_~ha~0_24 (_ BitVec 32))) (and (bvsgt (bvadd (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_24) (bvneg (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_27))) (_ bv251658240 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_27) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_27) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_27)) |__ieee754_hypotf_#in~y|)))) (and (= (_ bv68 32) __ieee754_hypotf_~k~0) .cse0 (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x) (exists ((v___ieee754_hypotf_~ha~0_34 (_ BitVec 32)) (v___ieee754_hypotf_~hb~0_41 (_ BitVec 32))) (and (= |__ieee754_hypotf_#in~y| (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_41) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_41) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_41))) (bvslt v___ieee754_hypotf_~ha~0_34 (_ bv2139095040 32)) (not (bvsgt (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_41) v___ieee754_hypotf_~ha~0_34))))))) [2018-11-18 11:07:42,747 INFO L425 ceAbstractionStarter]: For program point L197-1(line 197) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 171) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L421 ceAbstractionStarter]: At program point L182(line 182) the Hoare annotation is: (let ((.cse0 (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y))) (or (and .cse0 (exists ((v___ieee754_hypotf_~hb~0_27 (_ BitVec 32)) (v___ieee754_hypotf_~ha~0_24 (_ BitVec 32))) (and (bvsgt (bvadd (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_24) (bvneg (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_27))) (_ bv251658240 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_27) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_27) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_27)) |__ieee754_hypotf_#in~y|)))) (and (= (_ bv68 32) __ieee754_hypotf_~k~0) (exists ((v___ieee754_hypotf_~hb~0_38 (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_38))) (and (bvslt .cse1 (_ bv2139095040 32)) (bvsgt .cse1 (_ bv1484783616 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_38) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_38) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_38)) |__ieee754_hypotf_#in~y|)))) (and .cse0 (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x))))) [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L182-1(line 182) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L149-1(lines 149 153) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L421 ceAbstractionStarter]: At program point L149-3(lines 149 153) the Hoare annotation is: (let ((.cse0 (= __ieee754_hypotf_~a~0 (fp ((_ extract 31 31) __ieee754_hypotf_~ha~0) ((_ extract 30 23) __ieee754_hypotf_~ha~0) ((_ extract 22 0) __ieee754_hypotf_~ha~0)))) (.cse2 (exists ((v___ieee754_hypotf_~hb~0_35 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_35) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_35) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_35)) |__ieee754_hypotf_#in~y|) (not (bvsgt (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_35) (_ bv1484783616 32)))))) (.cse1 (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y)) (.cse3 (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x)) (.cse4 (not (bvsgt (bvadd (bvneg __ieee754_hypotf_~hb~0) __ieee754_hypotf_~ha~0) (_ bv251658240 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v___ieee754_hypotf_~hb~0_35 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_35) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_35) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_35)) |__ieee754_hypotf_#in~y|) (= __ieee754_hypotf_~ha~0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_35)))) (exists ((v___ieee754_hypotf_~hb~0_32 (_ BitVec 32))) (= __ieee754_hypotf_~hb~0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_32)))) (and .cse0 .cse2 (exists ((v___ieee754_hypotf_~ha~0_25 (_ BitVec 32))) (and (= |__ieee754_hypotf_#in~x| (fp ((_ extract 31 31) v___ieee754_hypotf_~ha~0_25) ((_ extract 30 23) v___ieee754_hypotf_~ha~0_25) ((_ extract 22 0) v___ieee754_hypotf_~ha~0_25))) (= __ieee754_hypotf_~ha~0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_25)))) (exists ((v___ieee754_hypotf_~hb~0_28 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_28) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_28) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_28)) |__ieee754_hypotf_#in~y|) (= __ieee754_hypotf_~hb~0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_28)))) .cse1 .cse3 .cse4))) [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L149-4(lines 149 153) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L166(lines 166 170) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L166-2(lines 157 171) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L200-1(lines 200 204) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L421 ceAbstractionStarter]: At program point L200-3(lines 200 204) the Hoare annotation is: (let ((.cse0 (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y))) (or (and .cse0 (exists ((v___ieee754_hypotf_~hb~0_27 (_ BitVec 32)) (v___ieee754_hypotf_~ha~0_24 (_ BitVec 32))) (and (bvsgt (bvadd (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_24) (bvneg (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_27))) (_ bv251658240 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_27) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_27) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_27)) |__ieee754_hypotf_#in~y|)))) (and (= (_ bv68 32) __ieee754_hypotf_~k~0) (and .cse0 (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x)) (exists ((v___ieee754_hypotf_~hb~0_38 (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_38))) (and (bvslt .cse1 (_ bv2139095040 32)) (bvsgt .cse1 (_ bv1484783616 32)) (= (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_38) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_38) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_38)) |__ieee754_hypotf_#in~y|))))))) [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L200-4(lines 200 204) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L421 ceAbstractionStarter]: At program point L134-3(lines 134 138) the Hoare annotation is: (and (= (_ bv68 32) __ieee754_hypotf_~k~0) (= |__ieee754_hypotf_#in~y| __ieee754_hypotf_~y) (exists ((v___ieee754_hypotf_~hb~0_32 (_ BitVec 32))) (= (bvadd __ieee754_hypotf_~hb~0 (_ bv570425344 32)) (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_32))) (= |__ieee754_hypotf_#in~x| __ieee754_hypotf_~x) (exists ((v___ieee754_hypotf_~ha~0_34 (_ BitVec 32)) (v___ieee754_hypotf_~hb~0_41 (_ BitVec 32))) (and (= |__ieee754_hypotf_#in~y| (fp ((_ extract 31 31) v___ieee754_hypotf_~hb~0_41) ((_ extract 30 23) v___ieee754_hypotf_~hb~0_41) ((_ extract 22 0) v___ieee754_hypotf_~hb~0_41))) (bvslt v___ieee754_hypotf_~ha~0_34 (_ bv2139095040 32)) (not (bvsgt (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_41) v___ieee754_hypotf_~ha~0_34)))) (exists ((v___ieee754_hypotf_~hb~0_30 (_ BitVec 32))) (= __ieee754_hypotf_~ha~0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~hb~0_30))) (exists ((v___ieee754_hypotf_~ha~0_27 (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) v___ieee754_hypotf_~ha~0_27))) (and (not (bvsgt (bvadd .cse0 (bvneg (bvadd __ieee754_hypotf_~hb~0 (_ bv570425344 32)))) (_ bv251658240 32))) (bvsgt .cse0 (_ bv1484783616 32)))))) [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-18 11:07:42,748 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L428 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: true [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L428 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: true [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L428 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: true [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L428 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: true [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-18 11:07:42,749 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-18 11:07:42,750 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-18 11:07:42,761 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 11:07:42,763 INFO L168 Benchmark]: Toolchain (without parser) took 317729.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.1 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -96.5 MB). Peak memory consumption was 131.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:07:42,763 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:07:42,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.23 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:07:42,764 INFO L168 Benchmark]: Boogie Preprocessor took 98.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -205.2 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:07:42,764 INFO L168 Benchmark]: RCFGBuilder took 1150.32 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: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:07:42,765 INFO L168 Benchmark]: TraceAbstraction took 316209.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 88.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.6 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:07:42,767 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.23 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -205.2 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1150.32 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: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 316209.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 88.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.6 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 239]: 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: 85]: Loop Invariant Derived loop invariant: \old(y) == y && \old(x) == x - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...