./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 ....................................................................................................................................................................................................................................................................................................... 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_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:02:41,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:02:41,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:02:41,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:02:41,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:02:41,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:02:41,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:02:41,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:02:41,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:02:41,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:02:41,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:02:41,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:02:41,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:02:41,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:02:41,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:02:41,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:02:41,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:02:41,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:02:41,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:02:41,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:02:41,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:02:41,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:02:41,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:02:41,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:02:41,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:02:41,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:02:41,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:02:41,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:02:41,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:02:41,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:02:41,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:02:41,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:02:41,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:02:41,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:02:41,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:02:41,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:02:41,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:02:41,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:02:41,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:02:41,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:02:41,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:02:41,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:02:41,387 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:02:41,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:02:41,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:02:41,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:02:41,394 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:02:41,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:02:41,394 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:02:41,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:02:41,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:02:41,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:02:41,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:02:41,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:02:41,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:02:41,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:02:41,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:02:41,396 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:02:41,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:02:41,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:02:41,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:02:41,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:02:41,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:02:41,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:02:41,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:02:41,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:02:41,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:02:41,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:02:41,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:02:41,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:02:41,399 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_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-11-19 22:02:41,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:02:41,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:02:41,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:02:41,618 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:02:41,619 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:02:41,620 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-19 22:02:41,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/5e4718ce8/ad4278e6694b4789a130caf5f4184170/FLAGadf7f1d4b [2019-11-19 22:02:42,140 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:02:42,142 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-19 22:02:42,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/5e4718ce8/ad4278e6694b4789a130caf5f4184170/FLAGadf7f1d4b [2019-11-19 22:02:42,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/5e4718ce8/ad4278e6694b4789a130caf5f4184170 [2019-11-19 22:02:42,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:02:42,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:02:42,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:02:42,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:02:42,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:02:42,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:42,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c077e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42, skipping insertion in model container [2019-11-19 22:02:42,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:42,545 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:02:42,571 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:02:42,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:02:42,920 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:02:42,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:02:42,983 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:02:42,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42 WrapperNode [2019-11-19 22:02:42,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:02:42,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:02:42,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:02:42,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:02:42,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:02:43,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:02:43,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:02:43,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:02:43,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... [2019-11-19 22:02:43,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:02:43,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:02:43,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:02:43,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:02:43,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 [2019-11-19 22:02:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:02:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:02:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 22:02:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 22:02:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:02:43,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:02:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:02:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-19 22:02:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:02:43,585 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:02:43,586 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-19 22:02:43,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:43 BoogieIcfgContainer [2019-11-19 22:02:43,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:02:43,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:02:43,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:02:43,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:02:43,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:02:42" (1/3) ... [2019-11-19 22:02:43,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec8591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:02:43, skipping insertion in model container [2019-11-19 22:02:43,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42" (2/3) ... [2019-11-19 22:02:43,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec8591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:02:43, skipping insertion in model container [2019-11-19 22:02:43,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:43" (3/3) ... [2019-11-19 22:02:43,593 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-11-19 22:02:43,602 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:02:43,608 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:02:43,618 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:02:43,640 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:02:43,640 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:02:43,640 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:02:43,641 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:02:43,641 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:02:43,641 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:02:43,641 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:02:43,641 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:02:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-11-19 22:02:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-19 22:02:43,657 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:02:43,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:02:43,658 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:02:43,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:02:43,663 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-11-19 22:02:43,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:02:43,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443693648] [2019-11-19 22:02:43,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:02:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:02:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:02:43,807 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443693648] [2019-11-19 22:02:43,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:02:43,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:02:43,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207944158] [2019-11-19 22:02:43,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:02:43,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:02:43,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:02:43,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:02:43,828 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-11-19 22:02:43,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:02:43,844 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-11-19 22:02:43,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:02:43,846 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-19 22:02:43,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:02:43,856 INFO L225 Difference]: With dead ends: 70 [2019-11-19 22:02:43,856 INFO L226 Difference]: Without dead ends: 33 [2019-11-19 22:02:43,860 INFO L630 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 [2019-11-19 22:02:43,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-19 22:02:43,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-19 22:02:43,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-19 22:02:43,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-19 22:02:43,889 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-11-19 22:02:43,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:02:43,890 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-19 22:02:43,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:02:43,890 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-19 22:02:43,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:02:43,891 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:02:43,891 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:02:43,891 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:02:43,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:02:43,891 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-11-19 22:02:43,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:02:43,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189706984] [2019-11-19 22:02:43,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:02:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:02:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:02:43,983 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:02:43,983 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:02:44,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:02:44 BoogieIcfgContainer [2019-11-19 22:02:44,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:02:44,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:02:44,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:02:44,016 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:02:44,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:43" (3/4) ... [2019-11-19 22:02:44,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:02:44,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:02:44,022 INFO L168 Benchmark]: Toolchain (without parser) took 1494.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -110.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:02:44,022 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:02:44,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:02:44,024 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.16 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:02:44,024 INFO L168 Benchmark]: Boogie Preprocessor took 38.22 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. [2019-11-19 22:02:44,024 INFO L168 Benchmark]: RCFGBuilder took 503.49 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:02:44,025 INFO L168 Benchmark]: TraceAbstraction took 428.13 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:02:44,025 INFO L168 Benchmark]: Witness Printer took 4.04 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. [2019-11-19 22:02:44,028 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 455.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.16 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.22 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. * RCFGBuilder took 503.49 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 428.13 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.04 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = -0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 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=36occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 0.1.24-678e011 [2019-11-19 22:02:46,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:02:46,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:02:46,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-19 22:02:46,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:02:46,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:02:46,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:02:46,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:02:46,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:02:46,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:02:46,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:02:46,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:02:46,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:02:46,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:02:46,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:02:46,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:02:46,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-19 22:02:46,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:02:46,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:02:46,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:02:46,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:02:46,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:02:46,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:02:46,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:02:46,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:02:46,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:02:46,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:02:46,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:02:46,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 22:02:46,201 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:02:46,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:02:46,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:02:46,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:02:46,207 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:02:46,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:02:46,208 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:02:46,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:02:46,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:02:46,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:02:46,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:02:46,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:02:46,210 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:02:46,210 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:02:46,211 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:02:46,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:02:46,211 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:02:46,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:02:46,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:02:46,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:02:46,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:02:46,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:02:46,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:02:46,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:02:46,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:02:46,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:02:46,214 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:02:46,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:02:46,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:02:46,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:02:46,215 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_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-11-19 22:02:46,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:02:46,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:02:46,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:02:46,523 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:02:46,523 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:02:46,524 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-19 22:02:46,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/681a547d8/55fbbead1f684a9a805bf246bf496d98/FLAG25a8d53cb [2019-11-19 22:02:47,041 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:02:47,042 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-19 22:02:47,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/681a547d8/55fbbead1f684a9a805bf246bf496d98/FLAG25a8d53cb [2019-11-19 22:02:47,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/data/681a547d8/55fbbead1f684a9a805bf246bf496d98 [2019-11-19 22:02:47,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:02:47,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:02:47,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:02:47,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:02:47,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:02:47,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a61c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47, skipping insertion in model container [2019-11-19 22:02:47,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,460 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:02:47,497 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:02:47,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:02:47,701 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:02:47,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:02:47,844 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:02:47,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47 WrapperNode [2019-11-19 22:02:47,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:02:47,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:02:47,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:02:47,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:02:47,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:02:47,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:02:47,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:02:47,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:02:47,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... [2019-11-19 22:02:47,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:02:47,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:02:47,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:02:47,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:02:47,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 [2019-11-19 22:02:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-19 22:02:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:02:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 22:02:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 22:02:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:02:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:02:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 22:02:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 22:02:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:02:56,241 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:02:56,241 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-19 22:02:56,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:56 BoogieIcfgContainer [2019-11-19 22:02:56,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:02:56,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:02:56,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:02:56,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:02:56,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:02:47" (1/3) ... [2019-11-19 22:02:56,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de9755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:02:56, skipping insertion in model container [2019-11-19 22:02:56,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:47" (2/3) ... [2019-11-19 22:02:56,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de9755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:02:56, skipping insertion in model container [2019-11-19 22:02:56,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:56" (3/3) ... [2019-11-19 22:02:56,248 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-11-19 22:02:56,256 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:02:56,260 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:02:56,268 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:02:56,291 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:02:56,291 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:02:56,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:02:56,291 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:02:56,291 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:02:56,292 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:02:56,292 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:02:56,292 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:02:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-11-19 22:02:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-19 22:02:56,311 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:02:56,311 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:02:56,312 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:02:56,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:02:56,316 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-11-19 22:02:56,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:02:56,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702175866] [2019-11-19 22:02:56,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 [2019-11-19 22:02:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:02:56,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 22:02:56,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:02:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:02:56,477 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:02:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:02:56,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702175866] [2019-11-19 22:02:56,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:02:56,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 22:02:56,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869355756] [2019-11-19 22:02:56,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:02:56,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:02:56,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:02:56,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:02:56,504 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-11-19 22:02:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:02:56,523 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-11-19 22:02:56,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:02:56,525 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-19 22:02:56,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:02:56,535 INFO L225 Difference]: With dead ends: 70 [2019-11-19 22:02:56,535 INFO L226 Difference]: Without dead ends: 33 [2019-11-19 22:02:56,541 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:02:56,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-19 22:02:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-19 22:02:56,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-19 22:02:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-19 22:02:56,573 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-11-19 22:02:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:02:56,573 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-19 22:02:56,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:02:56,573 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-19 22:02:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:02:56,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:02:56,574 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:02:56,788 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 22:02:56,788 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:02:56,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:02:56,788 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-11-19 22:02:56,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:02:56,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163038375] [2019-11-19 22:02:56,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 [2019-11-19 22:02:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:02:56,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 22:02:56,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:02:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:02:56,986 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:02:57,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:02:57,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163038375] [2019-11-19 22:02:57,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:02:57,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 22:02:57,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567324583] [2019-11-19 22:02:57,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:02:57,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:02:57,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:02:57,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:02:57,070 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2019-11-19 22:03:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:03:02,076 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2019-11-19 22:03:02,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:03:02,141 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-19 22:03:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:03:02,141 INFO L225 Difference]: With dead ends: 50 [2019-11-19 22:03:02,142 INFO L226 Difference]: Without dead ends: 29 [2019-11-19 22:03:02,143 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-19 22:03:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-19 22:03:02,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-19 22:03:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-19 22:03:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-19 22:03:02,148 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-11-19 22:03:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:03:02,148 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-19 22:03:02,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:03:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-19 22:03:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 22:03:02,149 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:03:02,149 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:03:02,350 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 22:03:02,350 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:03:02,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:03:02,350 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2019-11-19 22:03:02,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:03:02,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294095746] [2019-11-19 22:03:02,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 [2019-11-19 22:03:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:03:02,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 22:03:02,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:03:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:03:02,589 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:03:03,072 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-11-19 22:03:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:03:03,084 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294095746] [2019-11-19 22:03:03,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:03:03,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-11-19 22:03:03,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496969478] [2019-11-19 22:03:03,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 22:03:03,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:03:03,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 22:03:03,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:03:03,086 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 7 states. [2019-11-19 22:03:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:03:08,130 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-19 22:03:08,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:03:08,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-19 22:03:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:03:08,132 INFO L225 Difference]: With dead ends: 33 [2019-11-19 22:03:08,132 INFO L226 Difference]: Without dead ends: 29 [2019-11-19 22:03:08,133 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:03:08,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-19 22:03:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-19 22:03:08,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-19 22:03:08,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-19 22:03:08,139 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2019-11-19 22:03:08,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:03:08,139 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-19 22:03:08,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 22:03:08,140 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-19 22:03:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 22:03:08,141 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:03:08,141 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:03:08,341 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 22:03:08,342 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:03:08,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:03:08,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2019-11-19 22:03:08,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:03:08,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014835283] [2019-11-19 22:03:08,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/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 [2019-11-19 22:03:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:03:09,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:03:09,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:03:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:03:09,515 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:03:09,827 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-19 22:03:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:03:09,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014835283] [2019-11-19 22:03:09,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:03:09,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-19 22:03:09,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623775511] [2019-11-19 22:03:09,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 22:03:09,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:03:09,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:03:09,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:03:09,944 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2019-11-19 22:03:09,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:03:09,986 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-19 22:03:09,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:03:09,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-19 22:03:09,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:03:09,988 INFO L225 Difference]: With dead ends: 29 [2019-11-19 22:03:09,988 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:03:09,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:03:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:03:09,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:03:09,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:03:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:03:09,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-19 22:03:09,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:03:09,991 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:03:09,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 22:03:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:03:09,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:03:10,197 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-19 22:03:10,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:03:10,319 INFO L447 ceAbstractionStarter]: At program point L126(lines 111 127) the Hoare annotation is: true [2019-11-19 22:03:10,319 INFO L444 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-19 22:03:10,320 INFO L444 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-11-19 22:03:10,320 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-11-19 22:03:10,320 INFO L444 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-11-19 22:03:10,320 INFO L444 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-11-19 22:03:10,320 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:03:10,320 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:03:10,321 INFO L444 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-11-19 22:03:10,321 INFO L444 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-11-19 22:03:10,321 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-11-19 22:03:10,321 INFO L444 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-11-19 22:03:10,321 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-11-19 22:03:10,321 INFO L444 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-11-19 22:03:10,322 INFO L444 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-11-19 22:03:10,322 INFO L444 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-19 22:03:10,322 INFO L440 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-19 22:03:10,322 INFO L444 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-11-19 22:03:10,322 INFO L444 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-11-19 22:03:10,322 INFO L444 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-11-19 22:03:10,323 INFO L444 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-11-19 22:03:10,323 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 22:03:10,323 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-11-19 22:03:10,323 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-11-19 22:03:10,323 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-19 22:03:10,324 INFO L440 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (.cse1 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse1)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) .cse1) (= ~one_exp~0 .cse0) (= ULTIMATE.start___ieee754_expf_~x .cse1) (exists ((ULTIMATE.start___ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_expf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_expf_~sx~0)))))) [2019-11-19 22:03:10,324 INFO L444 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-11-19 22:03:10,324 INFO L440 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0) (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24)))) [2019-11-19 22:03:10,326 INFO L444 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-11-19 22:03:10,326 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:03:10,326 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-11-19 22:03:10,326 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-11-19 22:03:10,327 INFO L444 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-11-19 22:03:10,328 INFO L444 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-11-19 22:03:10,330 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-11-19 22:03:10,331 INFO L440 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-11-19 22:03:10,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,352 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,352 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,352 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,352 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,365 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,365 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,365 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,366 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,367 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:03:10 BoogieIcfgContainer [2019-11-19 22:03:10,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:03:10,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:03:10,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:03:10,381 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:03:10,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:56" (3/4) ... [2019-11-19 22:03:10,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:03:10,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-19 22:03:10,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-19 22:03:10,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:03:10,439 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) [2019-11-19 22:03:10,509 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dfd10852-41d0-495d-a4cc-39973aa6b81f/bin/uautomizer/witness.graphml [2019-11-19 22:03:10,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:03:10,511 INFO L168 Benchmark]: Toolchain (without parser) took 23071.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 957.8 MB in the beginning and 964.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 140.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:10,511 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:03:10,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:10,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.98 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. [2019-11-19 22:03:10,512 INFO L168 Benchmark]: Boogie Preprocessor took 50.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:10,513 INFO L168 Benchmark]: RCFGBuilder took 8290.73 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:10,513 INFO L168 Benchmark]: TraceAbstraction took 14138.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.5 MB in the end (delta: 131.7 MB). Peak memory consumption was 131.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:10,513 INFO L168 Benchmark]: Witness Printer took 128.27 ms. Allocated memory is still 1.2 GB. Free memory was 971.5 MB in the beginning and 964.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:10,515 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 403.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8290.73 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14138.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.5 MB in the end (delta: 131.7 MB). Peak memory consumption was 131.7 MB. Max. memory is 11.5 GB. * Witness Printer took 128.27 ms. Allocated memory is still 1.2 GB. Free memory was 971.5 MB in the beginning and 964.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - 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: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-11-19 22:03:10,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-19 22:03:10,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) - InvariantResult [Line: 41]: Loop Invariant [2019-11-19 22:03:10,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,546 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,546 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:03:10,547 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 14.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 98 SDtfs, 171 SDslu, 49 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 72 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9754 SizeOfPredicates, 17 NumberOfNonLiveVariables, 253 ConjunctsInSsa, 22 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...