./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.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_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/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 2099bda96984d0e4445a07fd627008694b409440 ................................................................................................................................................................................................................................................................................... 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_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/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 2099bda96984d0e4445a07fd627008694b409440 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:11:51,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:11:51,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:11:51,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:11:51,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:11:51,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:11:51,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:11:51,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:11:51,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:11:51,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:11:51,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:11:51,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:11:51,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:11:51,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:11:51,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:11:51,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:11:51,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:11:51,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:11:51,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:11:51,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:11:51,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:11:51,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:11:51,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:11:51,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:11:51,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:11:51,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:11:51,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:11:51,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:11:51,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:11:51,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:11:51,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:11:51,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:11:51,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:11:51,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:11:51,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:11:51,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:11:51,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:11:51,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:11:51,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:11:51,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:11:51,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:11:51,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 02:11:51,278 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:11:51,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:11:51,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:11:51,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:11:51,279 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:11:51,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:11:51,280 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:11:51,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:11:51,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:11:51,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:11:51,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:11:51,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:11:51,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:11:51,281 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:11:51,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:11:51,281 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:11:51,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:11:51,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:11:51,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:11:51,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:11:51,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:11:51,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:11:51,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:11:51,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:11:51,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:11:51,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:11:51,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:11:51,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:11:51,284 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_eba2ae45-17bd-4479-ac2d-2cd019069914/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2019-11-20 02:11:51,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:11:51,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:11:51,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:11:51,435 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:11:51,435 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:11:51,437 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-20 02:11:51,494 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/75f89a118/2db7a8871f474478bd47480d6a2c3d79/FLAG504b68d07 [2019-11-20 02:11:51,922 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:11:51,926 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-20 02:11:51,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/75f89a118/2db7a8871f474478bd47480d6a2c3d79/FLAG504b68d07 [2019-11-20 02:11:52,319 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/75f89a118/2db7a8871f474478bd47480d6a2c3d79 [2019-11-20 02:11:52,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:11:52,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:11:52,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:11:52,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:11:52,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:11:52,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18448f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52, skipping insertion in model container [2019-11-20 02:11:52,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,335 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:11:52,351 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:11:52,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:11:52,566 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:11:52,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:11:52,613 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:11:52,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52 WrapperNode [2019-11-20 02:11:52,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:11:52,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:11:52,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:11:52,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:11:52,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:11:52,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:11:52,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:11:52,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:11:52,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... [2019-11-20 02:11:52,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:11:52,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:11:52,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:11:52,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:11:52,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/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 [2019-11-20 02:11:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:11:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 02:11:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:11:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 02:11:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:11:52,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:11:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 02:11:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:11:53,110 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:11:53,110 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 02:11:53,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:11:53 BoogieIcfgContainer [2019-11-20 02:11:53,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:11:53,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:11:53,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:11:53,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:11:53,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:11:52" (1/3) ... [2019-11-20 02:11:53,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140a9271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:11:53, skipping insertion in model container [2019-11-20 02:11:53,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:52" (2/3) ... [2019-11-20 02:11:53,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140a9271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:11:53, skipping insertion in model container [2019-11-20 02:11:53,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:11:53" (3/3) ... [2019-11-20 02:11:53,119 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-11-20 02:11:53,128 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:11:53,135 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:11:53,144 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:11:53,164 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:11:53,164 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:11:53,164 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:11:53,164 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:11:53,165 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:11:53,165 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:11:53,165 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:11:53,165 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:11:53,180 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-20 02:11:53,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 02:11:53,185 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:11:53,186 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:11:53,186 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:11:53,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:11:53,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-11-20 02:11:53,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:11:53,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144965082] [2019-11-20 02:11:53,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:11:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:11:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:11:53,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144965082] [2019-11-20 02:11:53,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:11:53,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:11:53,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941756371] [2019-11-20 02:11:53,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 02:11:53,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:11:53,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 02:11:53,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 02:11:53,297 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-20 02:11:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:11:53,312 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-20 02:11:53,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 02:11:53,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 02:11:53,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:11:53,322 INFO L225 Difference]: With dead ends: 64 [2019-11-20 02:11:53,322 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 02:11:53,325 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 [2019-11-20 02:11:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 02:11:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 02:11:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 02:11:53,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-20 02:11:53,358 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-11-20 02:11:53,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:11:53,358 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-20 02:11:53,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 02:11:53,358 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-20 02:11:53,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 02:11:53,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:11:53,359 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:11:53,359 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:11:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:11:53,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-11-20 02:11:53,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:11:53,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552759944] [2019-11-20 02:11:53,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:11:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:11:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:11:53,439 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:11:53,440 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 02:11:53,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:11:53 BoogieIcfgContainer [2019-11-20 02:11:53,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:11:53,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:11:53,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:11:53,466 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:11:53,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:11:53" (3/4) ... [2019-11-20 02:11:53,469 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:11:53,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:11:53,471 INFO L168 Benchmark]: Toolchain (without parser) took 1148.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -117.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:11:53,471 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-20 02:11:53,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:11:53,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:11:53,473 INFO L168 Benchmark]: Boogie Preprocessor took 33.69 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. [2019-11-20 02:11:53,474 INFO L168 Benchmark]: RCFGBuilder took 420.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:11:53,474 INFO L168 Benchmark]: TraceAbstraction took 352.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:11:53,475 INFO L168 Benchmark]: Witness Printer took 3.47 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. [2019-11-20 02:11:53,478 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.69 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 420.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 352.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.47 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = 0.0f / 0.0f; [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] float res = __ieee754_sqrtf(x); [L13] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] COND TRUE !isnan_float(res) [L96] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 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=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 02:11:55,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:11:55,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:11:55,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:11:55,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:11:55,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:11:55,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:11:55,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:11:55,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:11:55,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:11:55,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:11:55,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:11:55,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:11:55,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:11:55,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:11:55,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:11:55,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:11:55,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:11:55,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:11:55,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:11:55,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:11:55,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:11:55,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:11:55,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:11:55,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:11:55,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:11:55,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:11:55,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:11:55,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:11:55,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:11:55,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:11:55,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:11:55,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:11:55,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:11:55,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:11:55,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:11:55,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:11:55,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:11:55,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:11:55,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:11:55,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:11:55,353 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 02:11:55,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:11:55,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:11:55,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:11:55,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:11:55,381 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:11:55,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:11:55,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:11:55,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:11:55,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:11:55,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:11:55,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:11:55,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:11:55,384 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 02:11:55,384 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 02:11:55,385 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:11:55,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:11:55,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:11:55,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:11:55,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:11:55,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:11:55,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:11:55,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:11:55,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:11:55,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:11:55,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:11:55,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:11:55,388 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 02:11:55,388 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 02:11:55,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:11:55,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 02:11:55,389 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_eba2ae45-17bd-4479-ac2d-2cd019069914/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2019-11-20 02:11:55,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:11:55,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:11:55,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:11:55,690 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:11:55,691 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:11:55,691 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-20 02:11:55,739 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/6f9a84b20/d1b99e6239a24e83a101d232f2c4ae51/FLAG49f881d87 [2019-11-20 02:11:56,156 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:11:56,157 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-20 02:11:56,166 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/6f9a84b20/d1b99e6239a24e83a101d232f2c4ae51/FLAG49f881d87 [2019-11-20 02:11:56,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/data/6f9a84b20/d1b99e6239a24e83a101d232f2c4ae51 [2019-11-20 02:11:56,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:11:56,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:11:56,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:11:56,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:11:56,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:11:56,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38962048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56, skipping insertion in model container [2019-11-20 02:11:56,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,197 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:11:56,215 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:11:56,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:11:56,383 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:11:56,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:11:56,535 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:11:56,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56 WrapperNode [2019-11-20 02:11:56,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:11:56,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:11:56,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:11:56,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:11:56,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:11:56,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:11:56,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:11:56,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:11:56,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... [2019-11-20 02:11:56,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:11:56,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:11:56,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:11:56,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:11:56,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/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 [2019-11-20 02:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 02:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 02:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:11:56,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 02:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 02:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:11:57,629 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:11:57,629 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 02:11:57,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:11:57 BoogieIcfgContainer [2019-11-20 02:11:57,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:11:57,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:11:57,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:11:57,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:11:57,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:11:56" (1/3) ... [2019-11-20 02:11:57,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1293e391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:11:57, skipping insertion in model container [2019-11-20 02:11:57,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:11:56" (2/3) ... [2019-11-20 02:11:57,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1293e391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:11:57, skipping insertion in model container [2019-11-20 02:11:57,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:11:57" (3/3) ... [2019-11-20 02:11:57,636 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-11-20 02:11:57,644 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:11:57,650 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:11:57,661 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:11:57,682 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:11:57,682 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:11:57,682 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:11:57,683 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:11:57,683 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:11:57,683 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:11:57,683 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:11:57,683 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:11:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-20 02:11:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 02:11:57,701 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:11:57,702 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:11:57,702 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:11:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:11:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-11-20 02:11:57,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:11:57,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233572003] [2019-11-20 02:11:57,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/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 [2019-11-20 02:11:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:11:57,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 02:11:57,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:11:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:11:57,891 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:11:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:11:57,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233572003] [2019-11-20 02:11:57,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:11:57,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 02:11:57,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649136096] [2019-11-20 02:11:57,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 02:11:57,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:11:57,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 02:11:57,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 02:11:57,914 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-20 02:11:57,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:11:57,929 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-20 02:11:57,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 02:11:57,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 02:11:57,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:11:57,939 INFO L225 Difference]: With dead ends: 64 [2019-11-20 02:11:57,939 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 02:11:57,942 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 02:11:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 02:11:57,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 02:11:57,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 02:11:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-20 02:11:57,973 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-11-20 02:11:57,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:11:57,973 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-20 02:11:57,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 02:11:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-20 02:11:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 02:11:57,974 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:11:57,974 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:11:58,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 02:11:58,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:11:58,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:11:58,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-11-20 02:11:58,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:11:58,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842427495] [2019-11-20 02:11:58,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/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 [2019-11-20 02:11:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:11:58,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 02:11:58,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:11:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:11:58,424 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:12:01,631 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-20 02:12:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:12:01,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842427495] [2019-11-20 02:12:01,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:12:01,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-20 02:12:01,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279375566] [2019-11-20 02:12:01,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 02:12:01,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:12:01,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 02:12:01,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-20 02:12:01,639 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 9 states. [2019-11-20 02:12:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:12:02,505 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-20 02:12:02,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:12:02,506 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-11-20 02:12:02,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:12:02,507 INFO L225 Difference]: With dead ends: 35 [2019-11-20 02:12:02,507 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 02:12:02,508 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-20 02:12:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 02:12:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 02:12:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 02:12:02,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-11-20 02:12:02,514 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2019-11-20 02:12:02,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:12:02,514 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-20 02:12:02,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 02:12:02,515 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-11-20 02:12:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 02:12:02,516 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:12:02,516 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:12:02,729 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 02:12:02,732 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:12:02,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:12:02,733 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2019-11-20 02:12:02,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:12:02,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999027158] [2019-11-20 02:12:02,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/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 [2019-11-20 02:12:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:12:02,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 02:12:02,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:12:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:12:02,848 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:12:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:12:02,939 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999027158] [2019-11-20 02:12:02,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:12:02,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 02:12:02,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596189153] [2019-11-20 02:12:02,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 02:12:02,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:12:02,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 02:12:02,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 02:12:02,941 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2019-11-20 02:12:03,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:12:03,015 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-11-20 02:12:03,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 02:12:03,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-11-20 02:12:03,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:12:03,015 INFO L225 Difference]: With dead ends: 30 [2019-11-20 02:12:03,016 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 02:12:03,016 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 02:12:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 02:12:03,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 02:12:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 02:12:03,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 02:12:03,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-20 02:12:03,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:12:03,018 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:12:03,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 02:12:03,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:12:03,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 02:12:03,232 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 02:12:03,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 02:12:03,314 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 02:12:03,314 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 02:12:03,314 INFO L440 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: false [2019-11-20 02:12:03,314 INFO L444 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2019-11-20 02:12:03,315 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-20 02:12:03,315 INFO L444 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-20 02:12:03,315 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2019-11-20 02:12:03,315 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-20 02:12:03,315 INFO L440 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|))) [2019-11-20 02:12:03,315 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2019-11-20 02:12:03,316 INFO L444 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2019-11-20 02:12:03,316 INFO L444 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2019-11-20 02:12:03,317 INFO L444 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2019-11-20 02:12:03,317 INFO L444 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2019-11-20 02:12:03,317 INFO L444 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2019-11-20 02:12:03,317 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-20 02:12:03,317 INFO L444 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2019-11-20 02:12:03,318 INFO L444 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2019-11-20 02:12:03,318 INFO L440 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: false [2019-11-20 02:12:03,318 INFO L444 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2019-11-20 02:12:03,318 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2019-11-20 02:12:03,318 INFO L440 ceAbstractionStarter]: At program point L81(lines 17 82) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0))) [2019-11-20 02:12:03,318 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2019-11-20 02:12:03,319 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 02:12:03,319 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2019-11-20 02:12:03,319 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2019-11-20 02:12:03,319 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 02:12:03,319 INFO L447 ceAbstractionStarter]: At program point L100(lines 84 101) the Hoare annotation is: true [2019-11-20 02:12:03,320 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-20 02:12:03,320 INFO L444 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-20 02:12:03,320 INFO L440 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-20 02:12:03,320 INFO L444 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2019-11-20 02:12:03,320 INFO L444 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2019-11-20 02:12:03,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,353 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,355 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,357 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,357 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,358 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,362 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,363 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,363 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,364 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:12:03 BoogieIcfgContainer [2019-11-20 02:12:03,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:12:03,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:12:03,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:12:03,368 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:12:03,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:11:57" (3/4) ... [2019-11-20 02:12:03,372 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 02:12:03,383 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 02:12:03,383 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 02:12:03,383 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 02:12:03,408 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 02:12:03,409 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-11-20 02:12:03,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eba2ae45-17bd-4479-ac2d-2cd019069914/bin/uautomizer/witness.graphml [2019-11-20 02:12:03,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:12:03,441 INFO L168 Benchmark]: Toolchain (without parser) took 7259.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 963.1 MB in the beginning and 985.8 MB in the end (delta: -22.7 MB). Peak memory consumption was 103.1 MB. Max. memory is 11.5 GB. [2019-11-20 02:12:03,442 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 02:12:03,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:12:03,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.54 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:12:03,450 INFO L168 Benchmark]: Boogie Preprocessor took 40.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:12:03,450 INFO L168 Benchmark]: RCFGBuilder took 1002.73 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:12:03,450 INFO L168 Benchmark]: TraceAbstraction took 5736.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 100.8 MB). Peak memory consumption was 100.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:12:03,451 INFO L168 Benchmark]: Witness Printer took 72.56 ms. Allocated memory is still 1.2 GB. Free memory is still 985.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:12:03,455 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 353.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.54 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1002.73 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5736.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 100.8 MB). Peak memory consumption was 100.8 MB. Max. memory is 11.5 GB. * Witness Printer took 72.56 ms. Allocated memory is still 1.2 GB. Free memory is still 985.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-11-20 02:12:03,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,469 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 13]: Loop Invariant [2019-11-20 02:12:03,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,472 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,472 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,472 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,472 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,473 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,473 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,484 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-20 02:12:03,493 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 02:12:03,494 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 5.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 45 SDslu, 172 SDs, 0 SdLazy, 43 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 63 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 2 QuantifiedInterpolants, 4169 SizeOfPredicates, 14 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...