./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.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_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 86466cf5e99320b887fae6f726f2af775c2eaef8 ........................................................................................................................................................................................................................................................................................... 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_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 86466cf5e99320b887fae6f726f2af775c2eaef8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:57:44,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:57:44,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:57:44,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:57:44,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:57:44,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:57:44,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:57:44,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:57:44,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:57:44,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:57:44,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:57:44,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:57:44,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:57:44,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:57:44,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:57:44,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:57:44,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:57:44,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:57:44,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:57:44,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:57:44,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:57:44,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:57:44,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:57:44,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:57:44,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:57:44,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:57:44,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:57:44,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:57:44,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:57:44,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:57:44,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:57:44,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:57:44,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:57:44,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:57:44,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:57:44,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:57:44,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:57:44,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:57:44,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:57:44,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:57:44,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:57:44,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 19:57:44,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:57:44,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:57:44,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:57:44,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:57:44,189 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:57:44,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:57:44,190 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 19:57:44,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 19:57:44,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 19:57:44,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:57:44,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 19:57:44,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 19:57:44,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 19:57:44,192 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 19:57:44,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:57:44,193 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:57:44,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 19:57:44,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:57:44,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:57:44,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 19:57:44,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 19:57:44,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:57:44,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:57:44,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 19:57:44,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 19:57:44,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 19:57:44,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 19:57:44,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 19:57:44,197 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_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2019-11-15 19:57:44,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:57:44,242 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:57:44,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:57:44,248 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:57:44,249 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:57:44,250 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-15 19:57:44,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/265917bf7/3279690c8fa04c55b57df3df15d62f01/FLAG7be6cfe3f [2019-11-15 19:57:44,780 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:57:44,780 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-15 19:57:44,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/265917bf7/3279690c8fa04c55b57df3df15d62f01/FLAG7be6cfe3f [2019-11-15 19:57:45,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/265917bf7/3279690c8fa04c55b57df3df15d62f01 [2019-11-15 19:57:45,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:57:45,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:57:45,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:57:45,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:57:45,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:57:45,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc5fba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45, skipping insertion in model container [2019-11-15 19:57:45,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,130 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:57:45,153 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:57:45,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:57:45,453 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:57:45,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:57:45,529 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:57:45,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45 WrapperNode [2019-11-15 19:57:45,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:57:45,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:57:45,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:57:45,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:57:45,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:57:45,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:57:45,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:57:45,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:57:45,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... [2019-11-15 19:57:45,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:57:45,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:57:45,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:57:45,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:57:45,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 19:57:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 19:57:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 19:57:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 19:57:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 19:57:45,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:57:45,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:57:45,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 19:57:45,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 19:57:46,261 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:57:46,261 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 19:57:46,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:57:46 BoogieIcfgContainer [2019-11-15 19:57:46,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:57:46,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 19:57:46,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 19:57:46,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 19:57:46,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 07:57:45" (1/3) ... [2019-11-15 19:57:46,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dba41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:57:46, skipping insertion in model container [2019-11-15 19:57:46,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:45" (2/3) ... [2019-11-15 19:57:46,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dba41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:57:46, skipping insertion in model container [2019-11-15 19:57:46,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:57:46" (3/3) ... [2019-11-15 19:57:46,277 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2019-11-15 19:57:46,288 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 19:57:46,305 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 19:57:46,317 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 19:57:46,363 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 19:57:46,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 19:57:46,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 19:57:46,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:57:46,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:57:46,364 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 19:57:46,364 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:57:46,364 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 19:57:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-15 19:57:46,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 19:57:46,391 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:57:46,392 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:46,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:57:46,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:46,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2019-11-15 19:57:46,407 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:46,407 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008343923] [2019-11-15 19:57:46,407 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:46,407 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:46,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:57:46,541 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 19:57:46,542 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008343923] [2019-11-15 19:57:46,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:57:46,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 19:57:46,543 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912754355] [2019-11-15 19:57:46,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 19:57:46,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:57:46,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 19:57:46,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 19:57:46,560 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-15 19:57:46,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:57:46,579 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-11-15 19:57:46,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 19:57:46,580 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 19:57:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:57:46,592 INFO L225 Difference]: With dead ends: 58 [2019-11-15 19:57:46,592 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 19:57:46,595 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 19:57:46,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 19:57:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-15 19:57:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 19:57:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 19:57:46,632 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2019-11-15 19:57:46,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:57:46,632 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 19:57:46,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 19:57:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 19:57:46,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 19:57:46,633 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:57:46,633 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:46,634 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:57:46,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:46,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2019-11-15 19:57:46,634 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:46,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829043677] [2019-11-15 19:57:46,635 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:46,635 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:46,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:46,747 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:46,748 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 19:57:46,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 07:57:46 BoogieIcfgContainer [2019-11-15 19:57:46,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 19:57:46,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:57:46,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:57:46,784 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:57:46,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:57:46" (3/4) ... [2019-11-15 19:57:46,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 19:57:46,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:57:46,796 INFO L168 Benchmark]: Toolchain (without parser) took 1684.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:46,796 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:57:46,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:46,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:46,798 INFO L168 Benchmark]: Boogie Preprocessor took 49.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:46,799 INFO L168 Benchmark]: RCFGBuilder took 625.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:46,800 INFO L168 Benchmark]: TraceAbstraction took 520.04 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:46,800 INFO L168 Benchmark]: Witness Printer took 9.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:57:46,804 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 418.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 625.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 520.04 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 9.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: 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 someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. 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] [L119] float x = 0.0f / 0.0f; [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] [L120] 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] [L123] COND TRUE !isnan_float(res) [L124] __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, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 19:57:49,639 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-15 19:57:49,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:57:49,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:57:49,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:57:49,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:57:49,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:57:49,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:57:49,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:57:49,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:57:49,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:57:49,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:57:49,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:57:49,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 19:57:49,707 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:57:49,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:57:49,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:57:49,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:57:49,709 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:57:49,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:57:49,710 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 19:57:49,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 19:57:49,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:57:49,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 19:57:49,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 19:57:49,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 19:57:49,711 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 19:57:49,711 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 19:57:49,712 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 19:57:49,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:57:49,712 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:57:49,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 19:57:49,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:57:49,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:57:49,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 19:57:49,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 19:57:49,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:57:49,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:57:49,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 19:57:49,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 19:57:49,715 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 19:57:49,715 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 19:57:49,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 19:57:49,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 19:57:49,715 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_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2019-11-15 19:57:49,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:57:49,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:57:49,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:57:49,769 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:57:49,770 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:57:49,770 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-15 19:57:49,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/fcdfd43d8/ad17d9b85fe5489c923c6aba7f3c8162/FLAG3d3773343 [2019-11-15 19:57:50,298 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:57:50,299 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-15 19:57:50,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/fcdfd43d8/ad17d9b85fe5489c923c6aba7f3c8162/FLAG3d3773343 [2019-11-15 19:57:50,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/data/fcdfd43d8/ad17d9b85fe5489c923c6aba7f3c8162 [2019-11-15 19:57:50,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:57:50,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:57:50,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:57:50,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:57:50,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:57:50,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:57:50" (1/1) ... [2019-11-15 19:57:50,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374c534b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:50, skipping insertion in model container [2019-11-15 19:57:50,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:57:50" (1/1) ... [2019-11-15 19:57:50,717 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:57:50,741 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:57:51,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:57:51,043 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:57:51,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:57:51,221 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:57:51,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51 WrapperNode [2019-11-15 19:57:51,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:57:51,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:57:51,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:57:51,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:57:51,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:57:51,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:57:51,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:57:51,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:57:51,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... [2019-11-15 19:57:51,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:57:51,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:57:51,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:57:51,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:57:51,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 19:57:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 19:57:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 19:57:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 19:57:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:57:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:57:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 19:57:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 19:57:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 19:58:04,328 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:58:04,329 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 19:58:04,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:58:04 BoogieIcfgContainer [2019-11-15 19:58:04,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:58:04,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 19:58:04,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 19:58:04,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 19:58:04,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 07:57:50" (1/3) ... [2019-11-15 19:58:04,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c6fea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:58:04, skipping insertion in model container [2019-11-15 19:58:04,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:51" (2/3) ... [2019-11-15 19:58:04,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c6fea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:58:04, skipping insertion in model container [2019-11-15 19:58:04,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:58:04" (3/3) ... [2019-11-15 19:58:04,339 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2019-11-15 19:58:04,349 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 19:58:04,357 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 19:58:04,369 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 19:58:04,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 19:58:04,396 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 19:58:04,396 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 19:58:04,396 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:58:04,397 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:58:04,397 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 19:58:04,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:58:04,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 19:58:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-15 19:58:04,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 19:58:04,418 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:58:04,419 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:58:04,420 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:58:04,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:58:04,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2019-11-15 19:58:04,433 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 19:58:04,434 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124963894] [2019-11-15 19:58:04,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 19:58:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:58:04,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 19:58:04,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:58:04,788 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 19:58:04,789 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 19:58:04,793 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 19:58:04,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124963894] [2019-11-15 19:58:04,795 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:58:04,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 19:58:04,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826938453] [2019-11-15 19:58:04,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 19:58:04,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 19:58:04,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 19:58:04,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 19:58:04,813 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-15 19:58:04,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:58:04,836 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-11-15 19:58:04,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 19:58:04,838 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 19:58:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:58:04,851 INFO L225 Difference]: With dead ends: 58 [2019-11-15 19:58:04,851 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 19:58:04,855 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 19:58:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 19:58:04,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-15 19:58:04,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 19:58:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 19:58:04,888 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2019-11-15 19:58:04,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:58:04,888 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 19:58:04,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 19:58:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 19:58:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 19:58:04,889 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:58:04,890 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:58:05,094 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 19:58:05,094 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:58:05,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:58:05,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2019-11-15 19:58:05,095 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 19:58:05,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69022361] [2019-11-15 19:58:05,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 19:58:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:58:05,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 19:58:05,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:58:05,439 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 19:58:05,439 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 19:58:05,514 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 19:58:05,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69022361] [2019-11-15 19:58:05,515 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:58:05,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 19:58:05,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117477753] [2019-11-15 19:58:05,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 19:58:05,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 19:58:05,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 19:58:05,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 19:58:05,518 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 6 states. [2019-11-15 19:58:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:58:08,673 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2019-11-15 19:58:08,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 19:58:08,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-15 19:58:08,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:58:08,823 INFO L225 Difference]: With dead ends: 42 [2019-11-15 19:58:08,823 INFO L226 Difference]: Without dead ends: 37 [2019-11-15 19:58:08,824 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-11-15 19:58:08,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-15 19:58:08,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2019-11-15 19:58:08,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 19:58:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-15 19:58:08,831 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-15 19:58:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:58:08,832 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-15 19:58:08,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 19:58:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-15 19:58:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 19:58:08,833 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:58:08,834 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:58:09,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 19:58:09,061 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:58:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:58:09,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2019-11-15 19:58:09,062 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 19:58:09,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028862910] [2019-11-15 19:58:09,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 19:58:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:58:09,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 19:58:09,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:58:09,477 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 19:58:09,478 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 19:58:15,496 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-11-15 19:58:15,510 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 19:58:15,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028862910] [2019-11-15 19:58:15,511 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:58:15,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-15 19:58:15,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124418301] [2019-11-15 19:58:15,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 19:58:15,512 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 19:58:15,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 19:58:15,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-15 19:58:15,513 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 10 states. [2019-11-15 19:58:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:58:27,457 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2019-11-15 19:58:27,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 19:58:27,457 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-11-15 19:58:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:58:27,459 INFO L225 Difference]: With dead ends: 32 [2019-11-15 19:58:27,459 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 19:58:27,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-11-15 19:58:27,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 19:58:27,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-15 19:58:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 19:58:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2019-11-15 19:58:27,465 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2019-11-15 19:58:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:58:27,466 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-11-15 19:58:27,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 19:58:27,466 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2019-11-15 19:58:27,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 19:58:27,467 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:58:27,467 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:58:27,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 19:58:27,687 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:58:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:58:27,687 INFO L82 PathProgramCache]: Analyzing trace with hash 933407232, now seen corresponding path program 1 times [2019-11-15 19:58:27,688 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 19:58:27,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393323956] [2019-11-15 19:58:27,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/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 19:58:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:58:27,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 19:58:27,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:58:27,848 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 19:58:27,848 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 19:58:27,935 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 19:58:27,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393323956] [2019-11-15 19:58:27,936 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:58:27,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 19:58:27,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438603259] [2019-11-15 19:58:27,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 19:58:27,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 19:58:27,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 19:58:27,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 19:58:27,938 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 8 states. [2019-11-15 19:58:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:58:28,002 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-15 19:58:28,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 19:58:28,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-15 19:58:28,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:58:28,003 INFO L225 Difference]: With dead ends: 27 [2019-11-15 19:58:28,003 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 19:58:28,004 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-15 19:58:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 19:58:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 19:58:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 19:58:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 19:58:28,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-15 19:58:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:58:28,006 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 19:58:28,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 19:58:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 19:58:28,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 19:58:28,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 19:58:28,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 19:58:28,327 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2019-11-15 19:58:28,327 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2019-11-15 19:58:28,328 INFO L439 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2019-11-15 19:58:28,328 INFO L439 ceAbstractionStarter]: At program point L106(lines 32 108) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (and (= ULTIMATE.start___ieee754_logf_~x .cse0) (= .cse1 ~zero_log~0) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1) |ULTIMATE.start___ieee754_logf_#res|))) [2019-11-15 19:58:28,328 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2019-11-15 19:58:28,328 INFO L443 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2019-11-15 19:58:28,329 INFO L439 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_logf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) [2019-11-15 19:58:28,329 INFO L443 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2019-11-15 19:58:28,329 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 19:58:28,329 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 19:58:28,329 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 19:58:28,329 INFO L443 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2019-11-15 19:58:28,330 INFO L439 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2019-11-15 19:58:28,330 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 126) no Hoare annotation was computed. [2019-11-15 19:58:28,330 INFO L443 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2019-11-15 19:58:28,330 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2019-11-15 19:58:28,330 INFO L443 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2019-11-15 19:58:28,331 INFO L439 ceAbstractionStarter]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (and (= ULTIMATE.start___ieee754_logf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= .cse1 ~zero_log~0) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1) |ULTIMATE.start___ieee754_logf_#res|))) [2019-11-15 19:58:28,331 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2019-11-15 19:58:28,331 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-15 19:58:28,331 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2019-11-15 19:58:28,331 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-15 19:58:28,332 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 19:58:28,332 INFO L446 ceAbstractionStarter]: At program point L128(lines 113 129) the Hoare annotation is: true [2019-11-15 19:58:28,332 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2019-11-15 19:58:28,332 INFO L443 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-15 19:58:28,333 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2019-11-15 19:58:28,333 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-15 19:58:28,333 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2019-11-15 19:58:28,333 INFO L443 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2019-11-15 19:58:28,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,362 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,363 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,363 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,365 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,365 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,365 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,366 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,367 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,367 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,368 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,371 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,371 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,372 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,372 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,391 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 07:58:28 BoogieIcfgContainer [2019-11-15 19:58:28,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 19:58:28,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:58:28,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:58:28,396 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:58:28,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:58:04" (3/4) ... [2019-11-15 19:58:28,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 19:58:28,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 19:58:28,429 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-15 19:58:28,464 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result [2019-11-15 19:58:28,465 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result [2019-11-15 19:58:28,523 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a37207f1-7345-4b78-ad75-8193f3ea01b0/bin/uautomizer/witness.graphml [2019-11-15 19:58:28,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:58:28,525 INFO L168 Benchmark]: Toolchain (without parser) took 37827.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 953.7 MB in the beginning and 916.1 MB in the end (delta: 37.6 MB). Peak memory consumption was 150.9 MB. Max. memory is 11.5 GB. [2019-11-15 19:58:28,525 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:58:28,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:58:28,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.37 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 19:58:28,531 INFO L168 Benchmark]: Boogie Preprocessor took 61.37 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-15 19:58:28,531 INFO L168 Benchmark]: RCFGBuilder took 12970.88 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-11-15 19:58:28,532 INFO L168 Benchmark]: TraceAbstraction took 24063.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 922.8 MB in the end (delta: 138.1 MB). Peak memory consumption was 138.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:58:28,532 INFO L168 Benchmark]: Witness Printer took 127.97 ms. Allocated memory is still 1.1 GB. Free memory was 922.8 MB in the beginning and 916.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 19:58:28,538 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 522.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.37 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 61.37 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 12970.88 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24063.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 922.8 MB in the end (delta: 138.1 MB). Peak memory consumption was 138.1 MB. Max. memory is 11.5 GB. * Witness Printer took 127.97 ms. Allocated memory is still 1.1 GB. Free memory was 922.8 MB in the beginning and 916.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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 - 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: 124]: 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 19:58:28,549 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,550 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,550 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,550 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,551 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,551 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,551 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 32]: Loop Invariant [2019-11-15 19:58:28,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-11-15 19:58:28,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 19:58:28,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 23.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 92 SDtfs, 112 SDslu, 198 SDs, 0 SdLazy, 100 SolverSat, 12 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 76 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 2 QuantifiedInterpolants, 6138 SizeOfPredicates, 19 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 27 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...