./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 9c71a459772bdb184fdc6408fbdfc05dbcf613bc ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 9c71a459772bdb184fdc6408fbdfc05dbcf613bc ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:27:24,923 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:27:24,924 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:27:24,933 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:27:24,933 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:27:24,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:27:24,935 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:27:24,936 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:27:24,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:27:24,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:27:24,939 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:27:24,939 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:27:24,940 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:27:24,940 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:27:24,941 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:27:24,942 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:27:24,943 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:27:24,944 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:27:24,945 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:27:24,946 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:27:24,947 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:27:24,948 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:27:24,949 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:27:24,949 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:27:24,950 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:27:24,950 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:27:24,951 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:27:24,951 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:27:24,952 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:27:24,953 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:27:24,953 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:27:24,953 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:27:24,953 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:27:24,954 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:27:24,954 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:27:24,955 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:27:24,955 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 11:27:24,964 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:27:24,964 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:27:24,965 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:27:24,965 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:27:24,966 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:27:24,966 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:27:24,966 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:27:24,966 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:27:24,966 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:27:24,966 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:27:24,966 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:27:24,966 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:27:24,967 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:27:24,967 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:27:24,967 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:27:24,967 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:27:24,967 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:27:24,967 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:27:24,967 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:27:24,967 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:27:24,968 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:27:24,968 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:27:24,968 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:27:24,968 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:27:24,968 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:27:24,968 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:27:24,968 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 11:27:24,968 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:27:24,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:27:24,969 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2018-11-10 11:27:24,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:27:25,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:27:25,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:27:25,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:27:25,004 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:27:25,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-11-10 11:27:25,049 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/4fb6cbd6c/16deae4aa15848339e1749b3e23ddfbb/FLAG45e43df5a [2018-11-10 11:27:25,385 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:27:25,385 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/sv-benchmarks/c/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-11-10 11:27:25,390 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/4fb6cbd6c/16deae4aa15848339e1749b3e23ddfbb/FLAG45e43df5a [2018-11-10 11:27:25,400 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/4fb6cbd6c/16deae4aa15848339e1749b3e23ddfbb [2018-11-10 11:27:25,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:27:25,405 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 11:27:25,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:27:25,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:27:25,408 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:27:25,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d64a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25, skipping insertion in model container [2018-11-10 11:27:25,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:27:25,430 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:27:25,542 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:27:25,544 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:27:25,563 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:27:25,579 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:27:25,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25 WrapperNode [2018-11-10 11:27:25,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:27:25,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:27:25,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:27:25,580 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:27:25,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... [2018-11-10 11:27:25,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:27:25,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:27:25,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:27:25,620 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:27:25,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 [2018-11-10 11:27:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:27:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:27:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 11:27:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 11:27:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:27:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 11:27:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 11:27:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:27:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:27:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:27:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 11:27:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-10 11:27:25,955 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:27:25,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:27:25 BoogieIcfgContainer [2018-11-10 11:27:25,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:27:25,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:27:25,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:27:25,958 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:27:25,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:27:25" (1/3) ... [2018-11-10 11:27:25,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64db8fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:27:25, skipping insertion in model container [2018-11-10 11:27:25,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:25" (2/3) ... [2018-11-10 11:27:25,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64db8fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:27:25, skipping insertion in model container [2018-11-10 11:27:25,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:27:25" (3/3) ... [2018-11-10 11:27:25,961 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b_true-unreach-call.c [2018-11-10 11:27:25,970 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:27:25,976 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:27:25,988 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:27:26,014 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:27:26,015 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:27:26,015 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:27:26,015 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:27:26,015 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:27:26,015 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:27:26,016 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:27:26,016 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:27:26,016 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:27:26,031 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-10 11:27:26,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 11:27:26,037 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:27:26,037 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:27:26,039 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:27:26,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:27:26,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1880525160, now seen corresponding path program 1 times [2018-11-10 11:27:26,046 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:27:26,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:27:26,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:27:26,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:27:26,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:27:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:27:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:27:26,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:27:26,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:27:26,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:27:26,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:27:26,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:27:26,155 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-11-10 11:27:26,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:27:26,172 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2018-11-10 11:27:26,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:27:26,173 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 11:27:26,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:27:26,179 INFO L225 Difference]: With dead ends: 144 [2018-11-10 11:27:26,179 INFO L226 Difference]: Without dead ends: 72 [2018-11-10 11:27:26,181 INFO L605 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 [2018-11-10 11:27:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-10 11:27:26,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-10 11:27:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-10 11:27:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2018-11-10 11:27:26,205 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 17 [2018-11-10 11:27:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:27:26,206 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2018-11-10 11:27:26,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:27:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2018-11-10 11:27:26,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:27:26,206 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:27:26,207 INFO L375 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, 1, 1, 1, 1] [2018-11-10 11:27:26,207 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:27:26,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:27:26,207 INFO L82 PathProgramCache]: Analyzing trace with hash -355409211, now seen corresponding path program 1 times [2018-11-10 11:27:26,207 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:27:26,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:27:26,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:27:26,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:27:26,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:27:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:27:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:27:26,263 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 11:27:26,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:27:26 BoogieIcfgContainer [2018-11-10 11:27:26,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:27:26,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:27:26,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:27:26,281 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:27:26,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:27:25" (3/4) ... [2018-11-10 11:27:26,283 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 11:27:26,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:27:26,284 INFO L168 Benchmark]: Toolchain (without parser) took 880.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -120.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:26,285 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:27:26,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.30 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 946.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:26,285 INFO L168 Benchmark]: Boogie Preprocessor took 39.94 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 944.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:26,286 INFO L168 Benchmark]: RCFGBuilder took 335.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:26,286 INFO L168 Benchmark]: TraceAbstraction took 323.98 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:26,287 INFO L168 Benchmark]: Witness Printer took 2.76 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. [2018-11-10 11:27:26,289 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.30 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 946.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.94 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 944.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 335.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 323.98 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.76 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: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450949, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [\old(x)=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L20] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={6442450946:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L21] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={6442450946:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L22] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={6442450946:0}, gf_u.word=6442450944, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L22] (ix) = gf_u.word [L23] COND FALSE !(0) VAL [\old(x)=0, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L24] hx = ix & 0x7fffffff VAL [\old(x)=0, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] RET return x * x + x; VAL [\old(x)=0, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, res=6442450948, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L105] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 87 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=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-1dbac8b [2018-11-10 11:27:27,740 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:27:27,741 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:27:27,750 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:27:27,750 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:27:27,750 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:27:27,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:27:27,752 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:27:27,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:27:27,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:27:27,754 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:27:27,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:27:27,755 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:27:27,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:27:27,757 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:27:27,757 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:27:27,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:27:27,759 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:27:27,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:27:27,761 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:27:27,762 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:27:27,763 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:27:27,764 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:27:27,764 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:27:27,764 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:27:27,765 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:27:27,766 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:27:27,766 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:27:27,767 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:27:27,767 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:27:27,768 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:27:27,768 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:27:27,768 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:27:27,768 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:27:27,769 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:27:27,769 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:27:27,770 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 11:27:27,779 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:27:27,779 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:27:27,780 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:27:27,780 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:27:27,781 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:27:27,781 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:27:27,781 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:27:27,781 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:27:27,781 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:27:27,781 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:27:27,782 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:27:27,783 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:27:27,783 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:27:27,783 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:27:27,783 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:27:27,783 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:27:27,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:27:27,783 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:27:27,784 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:27:27,784 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:27:27,784 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 11:27:27,784 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:27:27,784 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 11:27:27,784 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 11:27:27,784 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2018-11-10 11:27:27,813 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:27:27,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:27:27,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:27:27,826 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:27:27,826 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:27:27,827 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-11-10 11:27:27,870 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/84f7c7585/80366fedb26a4b1fbfea9bc4d9ec16fd/FLAG917596c13 [2018-11-10 11:27:28,192 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:27:28,192 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/sv-benchmarks/c/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-11-10 11:27:28,197 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/84f7c7585/80366fedb26a4b1fbfea9bc4d9ec16fd/FLAG917596c13 [2018-11-10 11:27:28,207 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/data/84f7c7585/80366fedb26a4b1fbfea9bc4d9ec16fd [2018-11-10 11:27:28,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:27:28,210 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 11:27:28,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:27:28,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:27:28,214 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:27:28,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69eb368e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28, skipping insertion in model container [2018-11-10 11:27:28,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:27:28,236 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:27:28,360 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:27:28,364 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:27:28,389 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:27:28,405 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:27:28,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28 WrapperNode [2018-11-10 11:27:28,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:27:28,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:27:28,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:27:28,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:27:28,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... [2018-11-10 11:27:28,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:27:28,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:27:28,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:27:28,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:27:28,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 [2018-11-10 11:27:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:27:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:27:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 11:27:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 11:27:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-10 11:27:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-10 11:27:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 11:27:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:27:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:27:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:27:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-10 11:27:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-10 11:27:28,718 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:27:28,722 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:27:29,173 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:27:29,178 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:27:29,181 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:27:29,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:27:29 BoogieIcfgContainer [2018-11-10 11:27:29,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:27:29,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:27:29,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:27:29,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:27:29,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:27:28" (1/3) ... [2018-11-10 11:27:29,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6555e422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:27:29, skipping insertion in model container [2018-11-10 11:27:29,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:27:28" (2/3) ... [2018-11-10 11:27:29,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6555e422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:27:29, skipping insertion in model container [2018-11-10 11:27:29,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:27:29" (3/3) ... [2018-11-10 11:27:29,186 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b_true-unreach-call.c [2018-11-10 11:27:29,192 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:27:29,197 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:27:29,206 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:27:29,226 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:27:29,226 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:27:29,226 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:27:29,227 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:27:29,227 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:27:29,227 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:27:29,227 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:27:29,227 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:27:29,227 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:27:29,238 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-10 11:27:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 11:27:29,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:27:29,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:27:29,244 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:27:29,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:27:29,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1880525160, now seen corresponding path program 1 times [2018-11-10 11:27:29,250 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:27:29,250 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 [2018-11-10 11:27:29,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:27:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:27:29,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:27:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:27:29,371 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:27:29,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:27:29,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:27:29,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:27:29,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:27:29,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:27:29,393 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-11-10 11:27:29,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:27:29,416 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2018-11-10 11:27:29,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:27:29,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 11:27:29,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:27:29,425 INFO L225 Difference]: With dead ends: 144 [2018-11-10 11:27:29,425 INFO L226 Difference]: Without dead ends: 72 [2018-11-10 11:27:29,428 INFO L605 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 [2018-11-10 11:27:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-10 11:27:29,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-10 11:27:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-10 11:27:29,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2018-11-10 11:27:29,456 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 17 [2018-11-10 11:27:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:27:29,457 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2018-11-10 11:27:29,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:27:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2018-11-10 11:27:29,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:27:29,458 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:27:29,458 INFO L375 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, 1, 1, 1, 1] [2018-11-10 11:27:29,458 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:27:29,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:27:29,459 INFO L82 PathProgramCache]: Analyzing trace with hash -355409211, now seen corresponding path program 1 times [2018-11-10 11:27:29,459 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:27:29,459 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 [2018-11-10 11:27:29,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:27:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:27:29,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:27:29,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:27:29,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:27:29,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:27:29,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:29,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:29,627 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-10 11:27:29,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-10 11:27:29,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-10 11:27:29,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:27:29,651 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:29,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:29,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-10 11:27:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:27:29,753 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:27:29,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:27:29,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 11:27:29,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 11:27:29,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 11:27:29,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 11:27:29,763 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand 9 states. [2018-11-10 11:27:30,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:27:30,794 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2018-11-10 11:27:30,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 11:27:30,794 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-11-10 11:27:30,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:27:30,797 INFO L225 Difference]: With dead ends: 101 [2018-11-10 11:27:30,797 INFO L226 Difference]: Without dead ends: 78 [2018-11-10 11:27:30,798 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-11-10 11:27:30,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-10 11:27:30,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2018-11-10 11:27:30,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-10 11:27:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2018-11-10 11:27:30,804 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 26 [2018-11-10 11:27:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:27:30,804 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2018-11-10 11:27:30,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 11:27:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2018-11-10 11:27:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 11:27:30,805 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:27:30,805 INFO L375 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, 1, 1, 1, 1, 1] [2018-11-10 11:27:30,806 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:27:30,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:27:30,806 INFO L82 PathProgramCache]: Analyzing trace with hash -571672782, now seen corresponding path program 1 times [2018-11-10 11:27:30,806 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:27:30,806 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/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 [2018-11-10 11:27:30,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:27:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:27:30,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:27:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:27:30,873 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:27:30,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:27:30,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 11:27:30,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 11:27:30,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 11:27:30,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:27:30,885 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 7 states. [2018-11-10 11:27:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:27:31,314 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2018-11-10 11:27:31,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 11:27:31,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-10 11:27:31,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:27:31,315 INFO L225 Difference]: With dead ends: 79 [2018-11-10 11:27:31,315 INFO L226 Difference]: Without dead ends: 76 [2018-11-10 11:27:31,316 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-10 11:27:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-10 11:27:31,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-11-10 11:27:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-10 11:27:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2018-11-10 11:27:31,324 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 27 [2018-11-10 11:27:31,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:27:31,324 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2018-11-10 11:27:31,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 11:27:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2018-11-10 11:27:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 11:27:31,325 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:27:31,325 INFO L375 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, 1, 1, 1, 1, 1, 1] [2018-11-10 11:27:31,325 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:27:31,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:27:31,325 INFO L82 PathProgramCache]: Analyzing trace with hash 569138537, now seen corresponding path program 1 times [2018-11-10 11:27:31,326 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:27:31,326 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 11:27:31,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:27:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:27:31,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:27:31,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:27:31,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:27:31,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:27:31,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:31,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:31,521 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-10 11:27:31,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-10 11:27:31,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-10 11:27:31,536 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:27:31,538 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:31,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:31,540 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-10 11:27:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:27:31,611 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:27:31,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:27:31,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 11:27:31,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 11:27:31,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 11:27:31,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 11:27:31,621 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 9 states. [2018-11-10 11:27:32,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:27:32,449 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2018-11-10 11:27:32,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 11:27:32,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-11-10 11:27:32,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:27:32,451 INFO L225 Difference]: With dead ends: 101 [2018-11-10 11:27:32,451 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 11:27:32,452 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-11-10 11:27:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 11:27:32,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 11:27:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 11:27:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2018-11-10 11:27:32,456 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 28 [2018-11-10 11:27:32,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:27:32,456 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2018-11-10 11:27:32,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 11:27:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2018-11-10 11:27:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-10 11:27:32,457 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:27:32,457 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:27:32,458 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:27:32,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:27:32,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1994779156, now seen corresponding path program 1 times [2018-11-10 11:27:32,458 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:27:32,458 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 11:27:32,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:27:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:27:32,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:27:32,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:27:32,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:27:32,576 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:27:32,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:32,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:32,584 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-10 11:27:32,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-10 11:27:32,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-10 11:27:32,610 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:27:32,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:32,613 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:27:32,613 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-10 11:27:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:27:32,732 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:27:32,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:27:32,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-10 11:27:32,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 11:27:32,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 11:27:32,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-10 11:27:32,740 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 14 states. [2018-11-10 11:27:33,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:27:33,229 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2018-11-10 11:27:33,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 11:27:33,230 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2018-11-10 11:27:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:27:33,230 INFO L225 Difference]: With dead ends: 44 [2018-11-10 11:27:33,230 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 11:27:33,230 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-11-10 11:27:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 11:27:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 11:27:33,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 11:27:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 11:27:33,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-11-10 11:27:33,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:27:33,231 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:27:33,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 11:27:33,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 11:27:33,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 11:27:33,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 11:27:33,351 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:27:33,351 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:27:33,351 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:27:33,351 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:27:33,351 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 11:27:33,351 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:27:33,351 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:27:33,351 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 93 111) the Hoare annotation is: true [2018-11-10 11:27:33,351 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-11-10 11:27:33,352 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 93 111) no Hoare annotation was computed. [2018-11-10 11:27:33,352 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 93 111) no Hoare annotation was computed. [2018-11-10 11:27:33,352 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-10 11:27:33,352 INFO L425 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-11-10 11:27:33,352 INFO L421 ceAbstractionStarter]: At program point L105-1(line 105) the Hoare annotation is: (and (= (_ +zero 8 24) main_~x~0) (= (_ +zero 8 24) main_~res~0) |main_#t~short9|) [2018-11-10 11:27:33,352 INFO L425 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-11-10 11:27:33,352 INFO L421 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-11-10 11:27:33,352 INFO L425 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L105-4(lines 105 108) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-11-10 11:27:33,353 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L421 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-10 11:27:33,354 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-10 11:27:33,355 INFO L425 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-10 11:27:33,356 INFO L421 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-11-10 11:27:33,356 INFO L425 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-11-10 11:27:33,356 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-10 11:27:33,356 INFO L425 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-11-10 11:27:33,356 INFO L425 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-11-10 11:27:33,356 INFO L425 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-11-10 11:27:33,356 INFO L425 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-11-10 11:27:33,356 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-10 11:27:33,357 INFO L425 ceAbstractionStarter]: For program point L76-2(line 76) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 81 91) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L85-3(line 85) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L421 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-10 11:27:33,358 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 81 91) the Hoare annotation is: true [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point L84-4(lines 84 88) no Hoare annotation was computed. [2018-11-10 11:27:33,358 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 81 91) no Hoare annotation was computed. [2018-11-10 11:27:33,366 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,367 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,367 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,367 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,367 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,367 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,367 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,368 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,368 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,368 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,368 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,369 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,369 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,369 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,369 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,369 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,370 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,370 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,370 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,370 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,371 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,371 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,371 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,371 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,372 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,372 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,372 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,372 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,372 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,372 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,373 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,373 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,373 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,373 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,373 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,374 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,374 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,374 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,374 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,374 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,375 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,375 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,375 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,375 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,376 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,376 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,376 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,376 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:27:33 BoogieIcfgContainer [2018-11-10 11:27:33,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:27:33,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:27:33,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:27:33,379 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:27:33,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:27:29" (3/4) ... [2018-11-10 11:27:33,382 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 11:27:33,388 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 11:27:33,388 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 11:27:33,388 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-10 11:27:33,388 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 11:27:33,392 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 11:27:33,393 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 11:27:33,393 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 11:27:33,409 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 11:27:33,409 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 11:27:33,410 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-11-10 11:27:33,410 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-11-10 11:27:33,410 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-11-10 11:27:33,435 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_92cec51d-ad66-42c3-a1b1-8256ae7c07a9/bin-2019/uautomizer/witness.graphml [2018-11-10 11:27:33,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:27:33,435 INFO L168 Benchmark]: Toolchain (without parser) took 5226.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 950.8 MB in the beginning and 853.4 MB in the end (delta: 97.4 MB). Peak memory consumption was 263.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:33,436 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:27:33,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.82 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:33,437 INFO L168 Benchmark]: Boogie Preprocessor took 31.86 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:27:33,437 INFO L168 Benchmark]: RCFGBuilder took 743.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:33,437 INFO L168 Benchmark]: TraceAbstraction took 4196.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.4 MB in the end (delta: 275.4 MB). Peak memory consumption was 275.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:27:33,437 INFO L168 Benchmark]: Witness Printer took 56.26 ms. Allocated memory is still 1.2 GB. Free memory is still 853.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:27:33,438 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.82 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.86 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 743.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4196.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.4 MB in the end (delta: 275.4 MB). Peak memory consumption was 275.4 MB. Max. memory is 11.5 GB. * Witness Printer took 56.26 ms. Allocated memory is still 1.2 GB. Free memory is still 853.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 36]: Loop Invariant [2018-11-10 11:27:33,442 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,442 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,445 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,445 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 50]: Loop Invariant [2018-11-10 11:27:33,445 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,445 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,445 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,445 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,446 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,446 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,446 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,446 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,446 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,447 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,447 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,447 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,447 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,447 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,447 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,447 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 73]: Loop Invariant [2018-11-10 11:27:33,448 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,448 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,448 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,448 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,448 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,448 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,449 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,449 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,449 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,449 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,449 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,450 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,450 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,450 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,450 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 11:27:33,450 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 324 SDtfs, 348 SDslu, 1286 SDs, 0 SdLazy, 401 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 19 PreInvPairs, 26 NumberOfFragments, 134 HoareAnnotationTreeSize, 19 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 136 ConstructedInterpolants, 10 QuantifiedInterpolants, 21319 SizeOfPredicates, 29 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...