./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.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_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e ............................................................................................................................................................................................................................................................................................................................................... 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_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:17:58,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:17:58,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:17:58,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:17:58,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:17:58,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:17:58,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:17:58,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:17:58,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:17:58,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:17:58,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:17:58,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:17:58,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:17:58,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:17:58,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:17:58,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:17:58,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:17:58,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:17:58,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:17:58,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:17:58,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:17:58,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:17:58,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:17:58,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:17:58,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:17:58,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:17:58,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:17:58,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:17:58,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:17:58,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:17:58,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:17:58,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:17:58,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:17:58,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:17:58,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:17:58,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:17:58,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:17:58,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:17:58,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:17:58,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:17:58,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:17:58,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:17:58,113 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:17:58,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:17:58,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:17:58,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:17:58,115 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:17:58,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:17:58,115 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:17:58,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:17:58,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:17:58,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:17:58,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:17:58,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:17:58,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:17:58,117 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:17:58,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:17:58,118 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:17:58,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:17:58,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:17:58,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:17:58,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:17:58,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:17:58,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:17:58,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:17:58,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:17:58,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:17:58,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:17:58,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:17:58,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:17:58,121 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_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2019-11-15 20:17:58,184 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:17:58,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:17:58,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:17:58,199 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:17:58,200 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:17:58,200 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-15 20:17:58,254 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/79ba84beb/d91412194fa44f4d9f589328f68868ab/FLAG8ff70e289 [2019-11-15 20:17:58,674 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:17:58,675 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-15 20:17:58,684 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/79ba84beb/d91412194fa44f4d9f589328f68868ab/FLAG8ff70e289 [2019-11-15 20:17:59,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/79ba84beb/d91412194fa44f4d9f589328f68868ab [2019-11-15 20:17:59,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:17:59,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:17:59,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:17:59,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:17:59,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:17:59,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6a536c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59, skipping insertion in model container [2019-11-15 20:17:59,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,041 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:17:59,068 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:17:59,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:17:59,438 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:17:59,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:17:59,549 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:17:59,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59 WrapperNode [2019-11-15 20:17:59,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:17:59,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:17:59,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:17:59,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:17:59,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:17:59,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:17:59,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:17:59,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:17:59,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... [2019-11-15 20:17:59,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:17:59,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:17:59,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:17:59,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:17:59,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 20:17:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:17:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:17:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:17:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:17:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:17:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:17:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:17:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:18:00,159 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:18:00,159 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 20:18:00,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:18:00 BoogieIcfgContainer [2019-11-15 20:18:00,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:18:00,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:18:00,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:18:00,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:18:00,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:17:59" (1/3) ... [2019-11-15 20:18:00,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43289dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:18:00, skipping insertion in model container [2019-11-15 20:18:00,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:17:59" (2/3) ... [2019-11-15 20:18:00,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43289dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:18:00, skipping insertion in model container [2019-11-15 20:18:00,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:18:00" (3/3) ... [2019-11-15 20:18:00,169 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2019-11-15 20:18:00,179 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:18:00,186 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:18:00,198 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:18:00,222 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:18:00,223 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:18:00,223 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:18:00,223 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:18:00,223 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:18:00,223 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:18:00,223 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:18:00,224 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:18:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-15 20:18:00,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:18:00,247 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:18:00,248 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:18:00,252 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:18:00,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:18:00,258 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2019-11-15 20:18:00,268 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:18:00,269 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152539415] [2019-11-15 20:18:00,269 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:18:00,269 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:18:00,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:18:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:18:00,395 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 20:18:00,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152539415] [2019-11-15 20:18:00,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:18:00,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:18:00,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605997236] [2019-11-15 20:18:00,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:18:00,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:18:00,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:18:00,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:18:00,415 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-15 20:18:00,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:18:00,436 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2019-11-15 20:18:00,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:18:00,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 20:18:00,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:18:00,450 INFO L225 Difference]: With dead ends: 71 [2019-11-15 20:18:00,450 INFO L226 Difference]: Without dead ends: 33 [2019-11-15 20:18:00,454 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 20:18:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-15 20:18:00,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-15 20:18:00,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-15 20:18:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-11-15 20:18:00,495 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2019-11-15 20:18:00,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:18:00,495 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-15 20:18:00,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:18:00,495 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-15 20:18:00,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:18:00,496 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:18:00,497 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:18:00,497 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:18:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:18:00,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2019-11-15 20:18:00,498 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:18:00,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229904874] [2019-11-15 20:18:00,498 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:18:00,498 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:18:00,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:18:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:18:00,564 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 20:18:00,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229904874] [2019-11-15 20:18:00,565 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:18:00,565 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:18:00,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314857635] [2019-11-15 20:18:00,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:18:00,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:18:00,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:18:00,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:18:00,567 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2019-11-15 20:18:00,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:18:00,590 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2019-11-15 20:18:00,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:18:00,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-15 20:18:00,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:18:00,592 INFO L225 Difference]: With dead ends: 59 [2019-11-15 20:18:00,592 INFO L226 Difference]: Without dead ends: 33 [2019-11-15 20:18:00,594 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:18:00,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-15 20:18:00,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-15 20:18:00,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-15 20:18:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-15 20:18:00,600 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2019-11-15 20:18:00,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:18:00,601 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-15 20:18:00,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:18:00,601 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-15 20:18:00,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 20:18:00,602 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:18:00,602 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:18:00,602 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:18:00,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:18:00,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2019-11-15 20:18:00,612 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:18:00,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502580857] [2019-11-15 20:18:00,613 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:18:00,613 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:18:00,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:18:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:18:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:18:00,797 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:18:00,797 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:18:00,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:18:00 BoogieIcfgContainer [2019-11-15 20:18:00,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:18:00,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:18:00,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:18:00,841 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:18:00,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:18:00" (3/4) ... [2019-11-15 20:18:00,846 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:18:00,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:18:00,848 INFO L168 Benchmark]: Toolchain (without parser) took 1820.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -95.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:00,849 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:18:00,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:00,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:18:00,851 INFO L168 Benchmark]: Boogie Preprocessor took 73.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:00,852 INFO L168 Benchmark]: RCFGBuilder took 465.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:00,852 INFO L168 Benchmark]: TraceAbstraction took 678.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:00,853 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:18:00,856 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 522.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 465.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 678.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L132] float x = __VERIFIER_nondet_float(); [L134] EXPR x < 0 && isfinite_float(x) [L115] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L117] ieee_float_shape_type gf_u; [L118] gf_u.value = (x) [L119] EXPR gf_u.word [L119] (ix) = gf_u.word [L121] ix &= 0x7fffffff [L122] return (((ix) < 0x7f800000L)); VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] COND TRUE (x < 0 && isfinite_float(x)) [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] float res = __ieee754_logf(x); [L111] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L139] COND TRUE !isnan_float(res) [L140] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 39 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 20:18:03,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:18:03,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:18:03,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:18:03,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:18:03,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:18:03,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:18:03,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:18:03,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:18:03,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:18:03,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:18:03,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:18:03,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:18:03,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:18:03,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:18:03,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:18:03,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:18:03,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:18:03,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:18:03,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:18:03,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:18:03,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:18:03,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:18:03,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:18:03,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:18:03,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:18:03,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:18:03,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:18:03,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:18:03,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:18:03,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:18:03,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:18:03,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:18:03,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:18:03,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:18:03,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:18:03,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:18:03,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:18:03,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:18:03,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:18:03,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:18:03,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:18:03,429 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:18:03,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:18:03,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:18:03,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:18:03,431 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:18:03,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:18:03,432 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:18:03,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:18:03,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:18:03,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:18:03,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:18:03,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:18:03,439 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:18:03,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:18:03,439 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:18:03,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:18:03,440 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:18:03,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:18:03,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:18:03,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:18:03,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:18:03,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:18:03,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:18:03,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:18:03,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:18:03,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:18:03,443 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:18:03,443 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:18:03,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:18:03,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:18:03,444 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_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2019-11-15 20:18:03,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:18:03,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:18:03,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:18:03,504 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:18:03,505 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:18:03,506 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-15 20:18:03,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/56ebb2aa4/55633bece739438abd5123c39b59b4a9/FLAGf541a5fc9 [2019-11-15 20:18:04,033 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:18:04,034 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-15 20:18:04,043 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/56ebb2aa4/55633bece739438abd5123c39b59b4a9/FLAGf541a5fc9 [2019-11-15 20:18:04,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/data/56ebb2aa4/55633bece739438abd5123c39b59b4a9 [2019-11-15 20:18:04,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:18:04,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:18:04,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:18:04,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:18:04,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:18:04,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126b2ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04, skipping insertion in model container [2019-11-15 20:18:04,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,427 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:18:04,458 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:18:04,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:18:04,685 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:18:04,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:18:04,860 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:18:04,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04 WrapperNode [2019-11-15 20:18:04,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:18:04,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:18:04,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:18:04,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:18:04,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:18:04,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:18:04,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:18:04,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:18:04,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... [2019-11-15 20:18:04,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:18:04,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:18:04,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:18:04,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:18:04,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 20:18:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:18:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 20:18:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:18:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:18:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:18:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 20:18:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:18:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:18:18,782 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:18:18,783 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 20:18:18,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:18:18 BoogieIcfgContainer [2019-11-15 20:18:18,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:18:18,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:18:18,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:18:18,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:18:18,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:18:04" (1/3) ... [2019-11-15 20:18:18,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd7472b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:18:18, skipping insertion in model container [2019-11-15 20:18:18,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:18:04" (2/3) ... [2019-11-15 20:18:18,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd7472b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:18:18, skipping insertion in model container [2019-11-15 20:18:18,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:18:18" (3/3) ... [2019-11-15 20:18:18,792 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2019-11-15 20:18:18,800 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:18:18,808 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:18:18,820 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:18:18,843 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:18:18,843 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:18:18,843 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:18:18,844 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:18:18,844 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:18:18,844 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:18:18,844 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:18:18,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:18:18,872 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-15 20:18:18,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:18:18,879 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:18:18,880 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:18:18,881 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:18:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:18:18,887 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2019-11-15 20:18:18,898 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:18:18,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282285960] [2019-11-15 20:18:18,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 20:18:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:18:19,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:18:19,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:18:19,293 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 20:18:19,293 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:18:19,297 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 20:18:19,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282285960] [2019-11-15 20:18:19,299 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:18:19,300 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:18:19,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077307133] [2019-11-15 20:18:19,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:18:19,305 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:18:19,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:18:19,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:18:19,319 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-15 20:18:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:18:19,342 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2019-11-15 20:18:19,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:18:19,344 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 20:18:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:18:19,356 INFO L225 Difference]: With dead ends: 71 [2019-11-15 20:18:19,357 INFO L226 Difference]: Without dead ends: 33 [2019-11-15 20:18:19,360 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 20:18:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-15 20:18:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-15 20:18:19,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-15 20:18:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-11-15 20:18:19,401 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2019-11-15 20:18:19,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:18:19,401 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-15 20:18:19,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:18:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-15 20:18:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:18:19,403 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:18:19,403 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:18:19,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:18:19,617 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:18:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:18:19,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2019-11-15 20:18:19,618 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:18:19,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421400842] [2019-11-15 20:18:19,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 20:18:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:18:19,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:18:19,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:18:19,916 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 20:18:19,917 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:18:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:18:19,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421400842] [2019-11-15 20:18:19,920 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:18:19,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-15 20:18:19,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125663273] [2019-11-15 20:18:19,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:18:19,923 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:18:19,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:18:19,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:18:19,924 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2019-11-15 20:18:19,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:18:19,957 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2019-11-15 20:18:19,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:18:19,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-15 20:18:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:18:19,963 INFO L225 Difference]: With dead ends: 59 [2019-11-15 20:18:19,963 INFO L226 Difference]: Without dead ends: 33 [2019-11-15 20:18:19,964 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:18:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-15 20:18:19,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-15 20:18:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-15 20:18:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-15 20:18:19,978 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2019-11-15 20:18:19,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:18:19,979 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-15 20:18:19,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:18:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-15 20:18:19,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 20:18:19,982 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:18:19,985 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:18:20,212 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:18:20,213 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:18:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:18:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2019-11-15 20:18:20,214 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:18:20,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831639535] [2019-11-15 20:18:20,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/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 20:18:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:18:20,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 20:18:20,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:18:20,681 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 20:18:20,681 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:18:20,875 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 20:18:20,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831639535] [2019-11-15 20:18:20,876 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:18:20,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-15 20:18:20,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10971959] [2019-11-15 20:18:20,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 20:18:20,877 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:18:20,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 20:18:20,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-15 20:18:20,878 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 10 states. [2019-11-15 20:18:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:18:21,386 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2019-11-15 20:18:21,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:18:21,451 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-11-15 20:18:21,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:18:21,451 INFO L225 Difference]: With dead ends: 38 [2019-11-15 20:18:21,452 INFO L226 Difference]: Without dead ends: 18 [2019-11-15 20:18:21,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-11-15 20:18:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-15 20:18:21,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-15 20:18:21,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 20:18:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-15 20:18:21,456 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-15 20:18:21,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:18:21,457 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-15 20:18:21,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 20:18:21,457 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-15 20:18:21,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 20:18:21,458 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:18:21,458 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:18:21,659 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 20:18:21,660 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:18:21,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:18:21,660 INFO L82 PathProgramCache]: Analyzing trace with hash -618100041, now seen corresponding path program 1 times [2019-11-15 20:18:21,661 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:18:21,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17348480] [2019-11-15 20:18:21,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 20:18:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:18:22,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 20:18:22,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:18:22,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:18:22,375 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 20:18:22,375 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:18:24,657 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-15 20:18:24,669 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 20:18:24,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17348480] [2019-11-15 20:18:24,670 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:18:24,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-15 20:18:24,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184717552] [2019-11-15 20:18:24,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 20:18:24,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:18:24,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 20:18:24,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-15 20:18:24,672 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2019-11-15 20:18:25,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:18:25,577 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-15 20:18:25,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:18:25,577 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-15 20:18:25,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:18:25,578 INFO L225 Difference]: With dead ends: 18 [2019-11-15 20:18:25,578 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:18:25,578 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-11-15 20:18:25,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:18:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:18:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:18:25,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:18:25,579 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-15 20:18:25,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:18:25,579 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:18:25,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 20:18:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:18:25,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:18:25,780 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 20:18:25,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:18:25,963 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2019-11-15 20:18:25,963 INFO L439 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2019-11-15 20:18:25,963 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2019-11-15 20:18:25,963 INFO L443 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2019-11-15 20:18:25,964 INFO L439 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt ULTIMATE.start___ieee754_logf_~x .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) (fp.lt ULTIMATE.start_main_~x~0 .cse0))) [2019-11-15 20:18:25,964 INFO L443 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2019-11-15 20:18:25,964 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:18:25,964 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:18:25,964 INFO L443 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2019-11-15 20:18:25,965 INFO L439 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2019-11-15 20:18:25,965 INFO L443 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2019-11-15 20:18:25,965 INFO L439 ceAbstractionStarter]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt ULTIMATE.start___ieee754_logf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) (not (fp.eq |ULTIMATE.start___ieee754_logf_#res| |ULTIMATE.start___ieee754_logf_#res|)) (fp.lt ULTIMATE.start_main_~x~0 .cse0) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) .cse0))) [2019-11-15 20:18:25,965 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2019-11-15 20:18:25,965 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-15 20:18:25,965 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2019-11-15 20:18:25,966 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-15 20:18:25,966 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2019-11-15 20:18:25,966 INFO L446 ceAbstractionStarter]: At program point L145(lines 125 146) the Hoare annotation is: true [2019-11-15 20:18:25,966 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-15 20:18:25,966 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2019-11-15 20:18:25,966 INFO L439 ceAbstractionStarter]: At program point L122(lines 114 123) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short12| (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) [2019-11-15 20:18:25,967 INFO L443 ceAbstractionStarter]: For program point L139(lines 139 142) no Hoare annotation was computed. [2019-11-15 20:18:25,967 INFO L439 ceAbstractionStarter]: At program point L106(lines 32 108) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt ULTIMATE.start___ieee754_logf_~x .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) (not (fp.eq |ULTIMATE.start___ieee754_logf_#res| |ULTIMATE.start___ieee754_logf_#res|)) (fp.lt ULTIMATE.start_main_~x~0 .cse0) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) .cse0))) [2019-11-15 20:18:25,967 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 20:18:25,967 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2019-11-15 20:18:25,968 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2019-11-15 20:18:25,968 INFO L443 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2019-11-15 20:18:25,968 INFO L443 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2019-11-15 20:18:25,968 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:18:25,970 INFO L443 ceAbstractionStarter]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2019-11-15 20:18:25,970 INFO L439 ceAbstractionStarter]: At program point L116-2(lines 116 120) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short12| (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) [2019-11-15 20:18:25,970 INFO L443 ceAbstractionStarter]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2019-11-15 20:18:25,971 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2019-11-15 20:18:25,972 INFO L443 ceAbstractionStarter]: For program point L134(line 134) no Hoare annotation was computed. [2019-11-15 20:18:25,978 INFO L443 ceAbstractionStarter]: For program point L134-2(lines 134 143) no Hoare annotation was computed. [2019-11-15 20:18:25,978 INFO L443 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2019-11-15 20:18:25,980 INFO L443 ceAbstractionStarter]: For program point L134-4(lines 134 143) no Hoare annotation was computed. [2019-11-15 20:18:25,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:25,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:25,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:25,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,001 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,001 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,014 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,014 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,014 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,015 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,015 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:18:26 BoogieIcfgContainer [2019-11-15 20:18:26,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:18:26,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:18:26,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:18:26,018 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:18:26,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:18:18" (3/4) ... [2019-11-15 20:18:26,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:18:26,037 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-15 20:18:26,038 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-15 20:18:26,071 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) [2019-11-15 20:18:26,072 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) [2019-11-15 20:18:26,131 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9c6ad2b3-a997-4bc0-95a1-fdcada8d9aa1/bin/uautomizer/witness.graphml [2019-11-15 20:18:26,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:18:26,138 INFO L168 Benchmark]: Toolchain (without parser) took 21734.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 948.3 MB in the beginning and 960.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 150.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:26,139 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:18:26,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:26,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:18:26,140 INFO L168 Benchmark]: Boogie Preprocessor took 47.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:26,141 INFO L168 Benchmark]: RCFGBuilder took 13821.24 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: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:26,141 INFO L168 Benchmark]: TraceAbstraction took 7232.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.1 MB in the end (delta: 141.6 MB). Peak memory consumption was 141.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:26,142 INFO L168 Benchmark]: Witness Printer took 119.02 ms. Allocated memory is still 1.2 GB. Free memory was 967.1 MB in the beginning and 960.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:18:26,144 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 452.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 13821.24 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: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7232.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.1 MB in the end (delta: 141.6 MB). Peak memory consumption was 141.6 MB. Max. memory is 11.5 GB. * Witness Printer took 119.02 ms. Allocated memory is still 1.2 GB. Free memory was 967.1 MB in the beginning and 960.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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: 140]: 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: 111]: Loop Invariant [2019-11-15 20:18:26,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 114]: Loop Invariant [2019-11-15 20:18:26,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log && aux-x < 0 && isfinite_float(x)-aux) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 32]: Loop Invariant [2019-11-15 20:18:26,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant [2019-11-15 20:18:26,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log && aux-x < 0 && isfinite_float(x)-aux) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2019-11-15 20:18:26,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:18:26,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 7.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 117 SDtfs, 38 SDslu, 118 SDs, 0 SdLazy, 31 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 108 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 20 QuantifiedInterpolants, 8755 SizeOfPredicates, 14 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...