./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 922786d1b563f399f230d6bc6e72c1342da4d1a5 ...................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 922786d1b563f399f230d6bc6e72c1342da4d1a5 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:46:52,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:46:52,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:46:52,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:46:52,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:46:52,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:46:52,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:46:52,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:46:52,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:46:52,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:46:52,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:46:52,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:46:52,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:46:52,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:46:52,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:46:52,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:46:52,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:46:52,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:46:52,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:46:52,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:46:52,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:46:52,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:46:52,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:46:52,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:46:52,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:46:52,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:46:52,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:46:52,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:46:52,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:46:52,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:46:52,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:46:52,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:46:52,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:46:52,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:46:52,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:46:52,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:46:52,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:46:52,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:46:52,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:46:52,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:46:52,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:46:52,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:46:52,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:46:52,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:46:52,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:46:52,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:46:52,240 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:46:52,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:46:52,241 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:46:52,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:46:52,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:46:52,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:46:52,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:46:52,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:46:52,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:46:52,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:46:52,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:46:52,243 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:46:52,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:46:52,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:46:52,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:46:52,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:46:52,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:46:52,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:46:52,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:46:52,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:46:52,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:46:52,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:46:52,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:46:52,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:46:52,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-11-15 22:46:52,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:46:52,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:46:52,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:46:52,295 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:46:52,296 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:46:52,297 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-15 22:46:52,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/8c78fcb6d/f542236ecb434b4dbc979a2376b88578/FLAG2abd7f2db [2019-11-15 22:46:52,784 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:46:52,785 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-15 22:46:52,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/8c78fcb6d/f542236ecb434b4dbc979a2376b88578/FLAG2abd7f2db [2019-11-15 22:46:52,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/8c78fcb6d/f542236ecb434b4dbc979a2376b88578 [2019-11-15 22:46:52,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:46:52,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:46:52,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:46:52,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:46:52,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:46:52,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:46:52" (1/1) ... [2019-11-15 22:46:52,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55009174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:52, skipping insertion in model container [2019-11-15 22:46:52,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:46:52" (1/1) ... [2019-11-15 22:46:52,827 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:46:52,850 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:46:53,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:46:53,112 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:46:53,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:46:53,165 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:46:53,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53 WrapperNode [2019-11-15 22:46:53,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:46:53,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:46:53,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:46:53,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:46:53,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:46:53,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:46:53,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:46:53,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:46:53,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... [2019-11-15 22:46:53,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:46:53,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:46:53,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:46:53,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:46:53,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:46:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:46:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:46:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:46:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:46:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:46:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:46:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:46:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:46:53,787 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:46:53,788 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 22:46:53,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:46:53 BoogieIcfgContainer [2019-11-15 22:46:53,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:46:53,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:46:53,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:46:53,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:46:53,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:46:52" (1/3) ... [2019-11-15 22:46:53,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4c4c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:46:53, skipping insertion in model container [2019-11-15 22:46:53,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:53" (2/3) ... [2019-11-15 22:46:53,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4c4c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:46:53, skipping insertion in model container [2019-11-15 22:46:53,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:46:53" (3/3) ... [2019-11-15 22:46:53,799 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-15 22:46:53,812 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:46:53,824 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:46:53,839 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:46:53,866 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:46:53,866 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:46:53,866 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:46:53,867 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:46:53,867 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:46:53,867 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:46:53,867 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:46:53,867 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:46:53,884 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-15 22:46:53,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:46:53,892 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:46:53,893 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:46:53,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:46:53,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:46:53,906 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-15 22:46:53,916 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:46:53,916 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460780289] [2019-11-15 22:46:53,917 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:46:53,917 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:46:53,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:46:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:46:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:46:54,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460780289] [2019-11-15 22:46:54,068 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:46:54,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:46:54,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835048263] [2019-11-15 22:46:54,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:46:54,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:46:54,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:46:54,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:46:54,094 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-15 22:46:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:46:54,123 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-15 22:46:54,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:46:54,125 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 22:46:54,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:46:54,140 INFO L225 Difference]: With dead ends: 46 [2019-11-15 22:46:54,141 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 22:46:54,148 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:46:54,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 22:46:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 22:46:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 22:46:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-15 22:46:54,199 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-15 22:46:54,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:46:54,200 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-15 22:46:54,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:46:54,201 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-15 22:46:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:46:54,202 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:46:54,203 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:46:54,203 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:46:54,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:46:54,204 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-15 22:46:54,204 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:46:54,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992762660] [2019-11-15 22:46:54,204 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:46:54,205 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:46:54,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:46:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:46:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:46:54,376 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:46:54,376 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:46:54,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:46:54 BoogieIcfgContainer [2019-11-15 22:46:54,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:46:54,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:46:54,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:46:54,408 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:46:54,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:46:53" (3/4) ... [2019-11-15 22:46:54,413 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:46:54,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:46:54,416 INFO L168 Benchmark]: Toolchain (without parser) took 1604.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:46:54,417 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:46:54,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:46:54,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.33 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:46:54,419 INFO L168 Benchmark]: Boogie Preprocessor took 36.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:46:54,420 INFO L168 Benchmark]: RCFGBuilder took 535.35 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:46:54,420 INFO L168 Benchmark]: TraceAbstraction took 617.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:46:54,421 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:46:54,425 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.33 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 535.35 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 617.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 74]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L68] double x = 0.0 / 0.0; [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L30] COND FALSE !(exponent_less_1023 < 20) [L47] COND TRUE exponent_less_1023 > 51 [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; [L70] double res = trunc_double(x); [L15] return x != x; [L73] COND TRUE !isnan_double(res) [L74] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 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=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 22:46:57,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:46:57,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:46:57,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:46:57,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:46:57,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:46:57,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:46:57,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:46:57,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:46:57,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:46:57,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:46:57,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:46:57,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:46:57,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:46:57,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:46:57,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:46:57,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:46:57,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:46:57,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:46:57,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:46:57,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:46:57,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:46:57,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:46:57,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:46:57,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:46:57,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:46:57,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:46:57,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:46:57,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:46:57,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:46:57,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:46:57,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:46:57,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:46:57,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:46:57,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:46:57,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:46:57,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:46:57,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:46:57,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:46:57,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:46:57,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:46:57,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:46:57,165 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:46:57,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:46:57,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:46:57,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:46:57,168 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:46:57,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:46:57,168 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:46:57,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:46:57,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:46:57,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:46:57,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:46:57,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:46:57,170 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:46:57,170 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:46:57,170 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:46:57,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:46:57,171 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:46:57,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:46:57,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:46:57,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:46:57,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:46:57,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:46:57,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:46:57,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:46:57,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:46:57,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:46:57,174 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:46:57,174 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:46:57,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:46:57,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:46:57,175 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-11-15 22:46:57,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:46:57,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:46:57,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:46:57,249 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:46:57,250 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:46:57,251 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-15 22:46:57,315 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/5af98f54f/f8eee0130cd34adfb2da88f3a57193ef/FLAGff8ff2cb6 [2019-11-15 22:46:57,729 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:46:57,729 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-15 22:46:57,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/5af98f54f/f8eee0130cd34adfb2da88f3a57193ef/FLAGff8ff2cb6 [2019-11-15 22:46:58,088 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/data/5af98f54f/f8eee0130cd34adfb2da88f3a57193ef [2019-11-15 22:46:58,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:46:58,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:46:58,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:46:58,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:46:58,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:46:58,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cafac0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58, skipping insertion in model container [2019-11-15 22:46:58,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,110 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:46:58,136 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:46:58,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:46:58,395 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:46:58,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:46:58,541 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:46:58,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58 WrapperNode [2019-11-15 22:46:58,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:46:58,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:46:58,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:46:58,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:46:58,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:46:58,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:46:58,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:46:58,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:46:58,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... [2019-11-15 22:46:58,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:46:58,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:46:58,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:46:58,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:46:58,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:46:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 22:46:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:46:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 22:46:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:46:58,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:46:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:46:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:46:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:46:59,153 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:46:59,153 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 22:46:59,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:46:59 BoogieIcfgContainer [2019-11-15 22:46:59,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:46:59,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:46:59,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:46:59,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:46:59,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:46:58" (1/3) ... [2019-11-15 22:46:59,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd7d68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:46:59, skipping insertion in model container [2019-11-15 22:46:59,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:46:58" (2/3) ... [2019-11-15 22:46:59,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd7d68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:46:59, skipping insertion in model container [2019-11-15 22:46:59,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:46:59" (3/3) ... [2019-11-15 22:46:59,164 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-15 22:46:59,175 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:46:59,183 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:46:59,207 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:46:59,234 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:46:59,234 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:46:59,234 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:46:59,235 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:46:59,235 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:46:59,235 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:46:59,235 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:46:59,235 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:46:59,251 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-15 22:46:59,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:46:59,257 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:46:59,258 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:46:59,259 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:46:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:46:59,264 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-15 22:46:59,275 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:46:59,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113684356] [2019-11-15 22:46:59,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 22:46:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:46:59,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:46:59,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:46:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:46:59,450 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:46:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:46:59,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113684356] [2019-11-15 22:46:59,456 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:46:59,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:46:59,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642540971] [2019-11-15 22:46:59,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:46:59,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:46:59,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:46:59,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:46:59,475 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-15 22:46:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:46:59,493 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-15 22:46:59,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:46:59,494 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 22:46:59,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:46:59,507 INFO L225 Difference]: With dead ends: 46 [2019-11-15 22:46:59,507 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 22:46:59,510 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:46:59,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 22:46:59,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 22:46:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 22:46:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-15 22:46:59,544 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-15 22:46:59,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:46:59,544 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-15 22:46:59,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:46:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-15 22:46:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:46:59,545 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:46:59,545 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:46:59,750 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:46:59,750 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:46:59,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:46:59,751 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-15 22:46:59,754 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:46:59,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424088816] [2019-11-15 22:46:59,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:46:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:46:59,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 22:46:59,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:47:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:47:00,030 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:47:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:47:00,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424088816] [2019-11-15 22:47:00,468 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:47:00,469 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 22:47:00,469 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755095665] [2019-11-15 22:47:00,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:47:00,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:47:00,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:47:00,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:47:00,473 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 8 states. [2019-11-15 22:47:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:47:01,550 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-11-15 22:47:01,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:47:01,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-15 22:47:01,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:47:01,552 INFO L225 Difference]: With dead ends: 27 [2019-11-15 22:47:01,552 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 22:47:01,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 22:47:01,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 22:47:01,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 22:47:01,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:47:01,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-15 22:47:01,559 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2019-11-15 22:47:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:47:01,560 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-15 22:47:01,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:47:01,560 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-15 22:47:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:47:01,561 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:47:01,562 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:47:01,778 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:47:01,778 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:47:01,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:47:01,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2019-11-15 22:47:01,779 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:47:01,780 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441261776] [2019-11-15 22:47:01,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:47:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:47:01,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 22:47:01,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:47:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:47:02,041 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:47:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:47:02,243 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441261776] [2019-11-15 22:47:02,244 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:47:02,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-11-15 22:47:02,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195538102] [2019-11-15 22:47:02,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 22:47:02,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:47:02,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 22:47:02,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:47:02,246 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2019-11-15 22:47:03,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:47:03,921 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-15 22:47:03,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:47:03,922 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-15 22:47:03,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:47:03,923 INFO L225 Difference]: With dead ends: 20 [2019-11-15 22:47:03,923 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:47:03,924 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 22:47:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:47:03,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:47:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:47:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:47:03,925 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-15 22:47:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:47:03,925 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:47:03,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 22:47:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:47:03,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:47:04,126 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:47:04,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:47:04,221 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 46) no Hoare annotation was computed. [2019-11-15 22:47:04,221 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2019-11-15 22:47:04,221 INFO L439 ceAbstractionStarter]: At program point L52-2(lines 52 57) the Hoare annotation is: false [2019-11-15 22:47:04,222 INFO L443 ceAbstractionStarter]: For program point L52-3(lines 30 58) no Hoare annotation was computed. [2019-11-15 22:47:04,222 INFO L443 ceAbstractionStarter]: For program point L48(lines 48 50) no Hoare annotation was computed. [2019-11-15 22:47:04,222 INFO L439 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_trunc_double_~x .cse0) (= |ULTIMATE.start_trunc_double_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-11-15 22:47:04,222 INFO L443 ceAbstractionStarter]: For program point L73(lines 73 76) no Hoare annotation was computed. [2019-11-15 22:47:04,222 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 22:47:04,222 INFO L443 ceAbstractionStarter]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2019-11-15 22:47:04,223 INFO L439 ceAbstractionStarter]: At program point L32-2(lines 32 37) the Hoare annotation is: false [2019-11-15 22:47:04,223 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:47:04,223 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:47:04,223 INFO L446 ceAbstractionStarter]: At program point L78(lines 62 79) the Hoare annotation is: true [2019-11-15 22:47:04,223 INFO L443 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2019-11-15 22:47:04,223 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:47:04,223 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 58) no Hoare annotation was computed. [2019-11-15 22:47:04,223 INFO L439 ceAbstractionStarter]: At program point L59(lines 17 60) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_trunc_double_~x .cse0) (= |ULTIMATE.start_trunc_double_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-11-15 22:47:04,223 INFO L443 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-15 22:47:04,224 INFO L439 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= ULTIMATE.start_trunc_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-15 22:47:04,224 INFO L443 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-15 22:47:04,224 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 58) no Hoare annotation was computed. [2019-11-15 22:47:04,224 INFO L443 ceAbstractionStarter]: For program point L39-1(lines 39 45) no Hoare annotation was computed. [2019-11-15 22:47:04,224 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2019-11-15 22:47:04,224 INFO L439 ceAbstractionStarter]: At program point L39-2(lines 39 45) the Hoare annotation is: false [2019-11-15 22:47:04,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,234 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,235 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,235 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,241 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,242 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,242 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,243 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,244 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,244 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,245 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,245 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,250 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:47:04 BoogieIcfgContainer [2019-11-15 22:47:04,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:47:04,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:47:04,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:47:04,254 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:47:04,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:46:59" (3/4) ... [2019-11-15 22:47:04,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:47:04,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 22:47:04,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-15 22:47:04,306 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 22:47:04,346 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-15 22:47:04,348 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result [2019-11-15 22:47:04,405 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a60700f7-be6a-4cd4-88b9-4050a2116172/bin/uautomizer/witness.graphml [2019-11-15 22:47:04,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:47:04,408 INFO L168 Benchmark]: Toolchain (without parser) took 6314.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.3 MB in the beginning and 989.3 MB in the end (delta: -36.9 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:47:04,411 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:47:04,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:47:04,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:47:04,413 INFO L168 Benchmark]: Boogie Preprocessor took 45.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:47:04,413 INFO L168 Benchmark]: RCFGBuilder took 509.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:47:04,414 INFO L168 Benchmark]: TraceAbstraction took 5097.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:47:04,415 INFO L168 Benchmark]: Witness Printer took 151.72 ms. Allocated memory is still 1.2 GB. Free memory was 995.9 MB in the beginning and 989.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:47:04,420 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 451.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 509.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5097.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. * Witness Printer took 151.72 ms. Allocated memory is still 1.2 GB. Free memory was 995.9 MB in the beginning and 989.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2019-11-15 22:47:04,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,437 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,437 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,438 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,438 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,438 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-11-15 22:47:04,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2019-11-15 22:47:04,445 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 22:47:04,445 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 24 SDslu, 89 SDs, 0 SdLazy, 43 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 51 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 5 QuantifiedInterpolants, 3872 SizeOfPredicates, 14 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...