./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc ............................................................................................................................................................................................................................................................................................................................. 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_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:18:07,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:18:07,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:18:07,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:18:07,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:18:07,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:18:07,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:18:07,961 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:18:07,962 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:18:07,963 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:18:07,963 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:18:07,963 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:18:07,964 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:18:07,964 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:18:07,965 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:18:07,965 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:18:07,965 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:18:07,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:18:07,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:18:07,968 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:18:07,968 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:18:07,969 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:18:07,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:18:07,970 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:18:07,970 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:18:07,971 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:18:07,971 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:18:07,972 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:18:07,972 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:18:07,973 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:18:07,973 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:18:07,973 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:18:07,973 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:18:07,973 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:18:07,974 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:18:07,974 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:18:07,974 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 19:18:07,981 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:18:07,982 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:18:07,982 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:18:07,982 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:18:07,982 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:18:07,982 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:18:07,983 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:18:07,983 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 19:18:07,983 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:18:07,983 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:18:07,983 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 19:18:07,983 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 19:18:07,983 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:18:07,984 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:18:07,984 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:18:07,984 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:18:07,984 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:18:07,984 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:18:07,984 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:18:07,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:18:07,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:18:07,985 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:18:07,985 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:18:07,985 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:18:07,985 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:18:07,985 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:18:07,985 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:18:07,986 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:18:07,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:18:07,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:18:07,986 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:18:07,986 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:18:07,986 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 19:18:07,986 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:18:07,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 19:18:07,987 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 19:18:07,987 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan 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 -> Taipan 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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-12-08 19:18:08,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:18:08,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:18:08,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:18:08,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:18:08,015 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:18:08,015 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-08 19:18:08,050 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/5642361a8/7b35b3c3b3bd4b52adeb1917252fc395/FLAG68ff2bc19 [2018-12-08 19:18:08,525 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:18:08,526 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-08 19:18:08,530 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/5642361a8/7b35b3c3b3bd4b52adeb1917252fc395/FLAG68ff2bc19 [2018-12-08 19:18:08,539 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/5642361a8/7b35b3c3b3bd4b52adeb1917252fc395 [2018-12-08 19:18:08,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:18:08,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:18:08,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:18:08,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:18:08,544 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:18:08,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c937f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08, skipping insertion in model container [2018-12-08 19:18:08,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:18:08,563 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:18:08,673 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:18:08,675 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:18:08,701 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:18:08,750 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:18:08,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08 WrapperNode [2018-12-08 19:18:08,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:18:08,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:18:08,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:18:08,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:18:08,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:18:08,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:18:08,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:18:08,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:18:08,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... [2018-12-08 19:18:08,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:18:08,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:18:08,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:18:08,790 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:18:08,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/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 [2018-12-08 19:18:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-12-08 19:18:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-12-08 19:18:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:18:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:18:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 19:18:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 19:18:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 19:18:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 19:18:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:18:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:18:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 19:18:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:18:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:18:08,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:18:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 19:18:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:18:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-08 19:18:08,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-08 19:18:09,035 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:18:09,035 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-08 19:18:09,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:18:09 BoogieIcfgContainer [2018-12-08 19:18:09,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:18:09,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:18:09,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:18:09,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:18:09,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:18:08" (1/3) ... [2018-12-08 19:18:09,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654dd2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:18:09, skipping insertion in model container [2018-12-08 19:18:09,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:08" (2/3) ... [2018-12-08 19:18:09,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654dd2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:18:09, skipping insertion in model container [2018-12-08 19:18:09,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:18:09" (3/3) ... [2018-12-08 19:18:09,039 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-12-08 19:18:09,045 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:18:09,049 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:18:09,058 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:18:09,075 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:18:09,076 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:18:09,076 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:18:09,076 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:18:09,076 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:18:09,076 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:18:09,076 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:18:09,076 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:18:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-12-08 19:18:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 19:18:09,089 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:09,090 INFO L402 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] [2018-12-08 19:18:09,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:09,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:09,094 INFO L82 PathProgramCache]: Analyzing trace with hash -961075978, now seen corresponding path program 1 times [2018-12-08 19:18:09,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:18:09,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:18:09,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:18:09,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:18:09,122 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:18:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:18:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:18:09,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:18:09,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:18:09,180 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:18:09,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 19:18:09,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 19:18:09,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:18:09,191 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-12-08 19:18:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:18:09,207 INFO L93 Difference]: Finished difference Result 129 states and 192 transitions. [2018-12-08 19:18:09,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 19:18:09,208 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-08 19:18:09,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:18:09,213 INFO L225 Difference]: With dead ends: 129 [2018-12-08 19:18:09,213 INFO L226 Difference]: Without dead ends: 64 [2018-12-08 19:18:09,215 INFO L631 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 [2018-12-08 19:18:09,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-12-08 19:18:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-12-08 19:18:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-12-08 19:18:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2018-12-08 19:18:09,239 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 23 [2018-12-08 19:18:09,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:18:09,240 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2018-12-08 19:18:09,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 19:18:09,240 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2018-12-08 19:18:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 19:18:09,241 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:09,241 INFO L402 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] [2018-12-08 19:18:09,241 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:09,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:09,241 INFO L82 PathProgramCache]: Analyzing trace with hash 2050098715, now seen corresponding path program 1 times [2018-12-08 19:18:09,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:18:09,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:18:09,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:18:09,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:18:09,242 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:18:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:18:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:18:09,297 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:18:09,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:18:09 BoogieIcfgContainer [2018-12-08 19:18:09,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:18:09,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:18:09,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:18:09,319 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:18:09,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:18:09" (3/4) ... [2018-12-08 19:18:09,321 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 19:18:09,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:18:09,322 INFO L168 Benchmark]: Toolchain (without parser) took 781.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 952.5 MB in the beginning and 1.0 GB in the end (delta: -87.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:18:09,323 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:18:09,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 952.5 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2018-12-08 19:18:09,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:18:09,324 INFO L168 Benchmark]: Boogie Preprocessor took 22.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:18:09,324 INFO L168 Benchmark]: RCFGBuilder took 245.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:18:09,324 INFO L168 Benchmark]: TraceAbstraction took 282.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:18:09,324 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:18:09,326 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 952.5 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 245.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 282.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 177]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 87, overapproximation of bitwiseAnd at line 101. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=6442450960, \old(one_sqrt)=6442450952, \old(pi)=6442450949, \old(pi)=6442450954, \old(pi)=6442450963, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450961, \old(pS2_acos)=6442450962, \old(pS3_acos)=6442450947, \old(pS4_acos)=6442450953, \old(pS5_acos)=6442450964, \old(qS1_acos)=6442450946, \old(qS2_acos)=6442450955, \old(qS3_acos)=6442450958, \old(qS4_acos)=6442450948, \old(tiny_sqrt)=6442450959, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L169] float x = __VERIFIER_nondet_float(); [L171] COND TRUE x < -1.0f || x > 1.0f VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L173] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=6442450950, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=6442450950, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L97] ieee_float_shape_type gf_u; [L98] gf_u.value = (x) [L99] EXPR gf_u.word [L99] (hx) = gf_u.word [L101] ix = hx & 0x7fffffff VAL [\old(x)=6442450950, hx=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=6442450950, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L103] COND TRUE hx > 0 [L104] return 0.0; VAL [\old(x)=6442450950, \result=0, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L173] RET, EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L173] float res = __ieee754_acosf(x); [L176] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L176] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L176] COND TRUE !isnan_float(res) [L177] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 69 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=69occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 0.1.23-635dfa2 [2018-12-08 19:18:10,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:18:10,746 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:18:10,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:18:10,753 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:18:10,753 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:18:10,754 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:18:10,754 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:18:10,755 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:18:10,756 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:18:10,756 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:18:10,756 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:18:10,757 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:18:10,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:18:10,757 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:18:10,758 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:18:10,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:18:10,759 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:18:10,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:18:10,761 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:18:10,761 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:18:10,762 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:18:10,763 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:18:10,763 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:18:10,763 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:18:10,763 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:18:10,764 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:18:10,764 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:18:10,765 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:18:10,765 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:18:10,765 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:18:10,765 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:18:10,766 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:18:10,766 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:18:10,766 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:18:10,766 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:18:10,767 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 19:18:10,774 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:18:10,774 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:18:10,774 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:18:10,774 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:18:10,775 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:18:10,775 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:18:10,775 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:18:10,775 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:18:10,775 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:18:10,775 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:18:10,775 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:18:10,776 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:18:10,777 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:18:10,777 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 19:18:10,777 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:18:10,778 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 19:18:10,778 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 19:18:10,778 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_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan 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 -> Taipan 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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-12-08 19:18:10,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:18:10,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:18:10,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:18:10,810 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:18:10,810 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:18:10,811 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-08 19:18:10,856 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/b36a6c250/3b8fddd95e0b4619926d9a0af0719785/FLAGdb2af3261 [2018-12-08 19:18:11,253 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:18:11,254 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-08 19:18:11,258 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/b36a6c250/3b8fddd95e0b4619926d9a0af0719785/FLAGdb2af3261 [2018-12-08 19:18:11,267 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/data/b36a6c250/3b8fddd95e0b4619926d9a0af0719785 [2018-12-08 19:18:11,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:18:11,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:18:11,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:18:11,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:18:11,273 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:18:11,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12c072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11, skipping insertion in model container [2018-12-08 19:18:11,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:18:11,298 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:18:11,426 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:18:11,430 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:18:11,460 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:18:11,475 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:18:11,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11 WrapperNode [2018-12-08 19:18:11,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:18:11,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:18:11,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:18:11,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:18:11,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:18:11,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:18:11,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:18:11,522 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:18:11,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... [2018-12-08 19:18:11,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:18:11,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:18:11,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:18:11,548 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:18:11,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/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 [2018-12-08 19:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-12-08 19:18:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-12-08 19:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:18:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-08 19:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 19:18:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 19:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:18:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 19:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:18:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-08 19:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 19:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-08 19:18:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-08 19:18:13,877 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:18:20,708 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:18:20,780 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:18:21,098 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:18:21,099 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-08 19:18:21,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:18:21 BoogieIcfgContainer [2018-12-08 19:18:21,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:18:21,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:18:21,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:18:21,101 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:18:21,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:18:11" (1/3) ... [2018-12-08 19:18:21,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f739e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:18:21, skipping insertion in model container [2018-12-08 19:18:21,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:18:11" (2/3) ... [2018-12-08 19:18:21,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f739e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:18:21, skipping insertion in model container [2018-12-08 19:18:21,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:18:21" (3/3) ... [2018-12-08 19:18:21,103 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-12-08 19:18:21,108 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:18:21,112 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:18:21,121 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:18:21,137 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 19:18:21,137 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:18:21,137 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:18:21,137 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:18:21,137 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:18:21,138 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:18:21,138 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:18:21,138 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:18:21,138 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:18:21,147 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-12-08 19:18:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 19:18:21,151 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:21,151 INFO L402 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] [2018-12-08 19:18:21,152 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:21,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:21,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1262342526, now seen corresponding path program 1 times [2018-12-08 19:18:21,158 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:18:21,158 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/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 [2018-12-08 19:18:21,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:18:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:18:21,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:18:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:18:21,234 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:18:21,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:18:21,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:18:21,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 19:18:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 19:18:21,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:18:21,259 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-12-08 19:18:21,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:18:21,276 INFO L93 Difference]: Finished difference Result 127 states and 190 transitions. [2018-12-08 19:18:21,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 19:18:21,277 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-08 19:18:21,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:18:21,283 INFO L225 Difference]: With dead ends: 127 [2018-12-08 19:18:21,283 INFO L226 Difference]: Without dead ends: 63 [2018-12-08 19:18:21,285 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:18:21,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-12-08 19:18:21,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-12-08 19:18:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-08 19:18:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2018-12-08 19:18:21,311 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 22 [2018-12-08 19:18:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:18:21,312 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2018-12-08 19:18:21,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 19:18:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2018-12-08 19:18:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 19:18:21,313 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:21,313 INFO L402 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] [2018-12-08 19:18:21,313 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:21,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:21,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1047695047, now seen corresponding path program 1 times [2018-12-08 19:18:21,314 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:18:21,314 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/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 [2018-12-08 19:18:21,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:18:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:18:21,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:18:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:18:21,461 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:18:21,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:18:21,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 19:18:21,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 19:18:21,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 19:18:21,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 19:18:21,470 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 7 states. [2018-12-08 19:18:27,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:18:27,129 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2018-12-08 19:18:27,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 19:18:27,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-08 19:18:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:18:27,132 INFO L225 Difference]: With dead ends: 75 [2018-12-08 19:18:27,132 INFO L226 Difference]: Without dead ends: 64 [2018-12-08 19:18:27,132 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:18:27,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-12-08 19:18:27,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2018-12-08 19:18:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-08 19:18:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2018-12-08 19:18:27,138 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 23 [2018-12-08 19:18:27,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:18:27,139 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2018-12-08 19:18:27,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 19:18:27,139 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2018-12-08 19:18:27,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 19:18:27,139 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:27,139 INFO L402 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] [2018-12-08 19:18:27,140 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:27,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:27,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1869882521, now seen corresponding path program 1 times [2018-12-08 19:18:27,140 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:18:27,140 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/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 [2018-12-08 19:18:27,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:18:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:18:27,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:18:28,044 WARN L180 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-08 19:18:29,829 WARN L180 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-08 19:18:31,987 WARN L180 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-08 19:18:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:18:34,607 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:18:34,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:18:34,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 19:18:34,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 19:18:34,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 19:18:34,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 19:18:34,617 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand 7 states. [2018-12-08 19:18:42,301 WARN L180 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-08 19:18:47,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:18:47,589 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2018-12-08 19:18:47,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 19:18:47,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-08 19:18:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:18:47,590 INFO L225 Difference]: With dead ends: 69 [2018-12-08 19:18:47,591 INFO L226 Difference]: Without dead ends: 62 [2018-12-08 19:18:47,591 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-08 19:18:47,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-12-08 19:18:47,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-12-08 19:18:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-08 19:18:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2018-12-08 19:18:47,596 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 23 [2018-12-08 19:18:47,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:18:47,596 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2018-12-08 19:18:47,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 19:18:47,596 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2018-12-08 19:18:47,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 19:18:47,597 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:47,597 INFO L402 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] [2018-12-08 19:18:47,597 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:47,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:47,597 INFO L82 PathProgramCache]: Analyzing trace with hash 681739413, now seen corresponding path program 1 times [2018-12-08 19:18:47,598 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:18:47,598 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/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 [2018-12-08 19:18:47,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:18:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:18:47,669 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:18:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:18:47,777 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:18:47,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:18:47,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 19:18:47,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 19:18:47,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 19:18:47,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-08 19:18:47,788 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand 8 states. [2018-12-08 19:18:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:18:53,411 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2018-12-08 19:18:53,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 19:18:53,412 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-12-08 19:18:53,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:18:53,412 INFO L225 Difference]: With dead ends: 74 [2018-12-08 19:18:53,413 INFO L226 Difference]: Without dead ends: 55 [2018-12-08 19:18:53,413 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-08 19:18:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-08 19:18:53,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-12-08 19:18:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-12-08 19:18:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2018-12-08 19:18:53,417 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 25 [2018-12-08 19:18:53,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:18:53,417 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2018-12-08 19:18:53,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 19:18:53,418 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2018-12-08 19:18:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 19:18:53,418 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:53,418 INFO L402 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] [2018-12-08 19:18:53,419 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:53,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:53,419 INFO L82 PathProgramCache]: Analyzing trace with hash 485225908, now seen corresponding path program 1 times [2018-12-08 19:18:53,419 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:18:53,419 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/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 [2018-12-08 19:18:53,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:18:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:18:54,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:18:54,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:18:54,523 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:18:54,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:18:54,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 19:18:54,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 19:18:54,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 19:18:54,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-08 19:18:54,542 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand 8 states. [2018-12-08 19:18:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:18:59,429 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2018-12-08 19:18:59,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 19:18:59,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-12-08 19:18:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:18:59,586 INFO L225 Difference]: With dead ends: 65 [2018-12-08 19:18:59,586 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 19:18:59,586 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-08 19:18:59,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 19:18:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 19:18:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 19:18:59,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-12-08 19:18:59,590 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 25 [2018-12-08 19:18:59,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:18:59,591 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-12-08 19:18:59,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 19:18:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-12-08 19:18:59,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-08 19:18:59,591 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:18:59,592 INFO L402 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] [2018-12-08 19:18:59,592 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:18:59,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:18:59,592 INFO L82 PathProgramCache]: Analyzing trace with hash 935117644, now seen corresponding path program 1 times [2018-12-08 19:18:59,592 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:18:59,592 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-08 19:18:59,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:19:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:19:00,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:19:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:19:00,834 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:19:00,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:19:00,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 19:19:00,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 19:19:00,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 19:19:00,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-08 19:19:00,853 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 9 states. [2018-12-08 19:19:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:19:03,442 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2018-12-08 19:19:03,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 19:19:03,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-12-08 19:19:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:19:03,444 INFO L225 Difference]: With dead ends: 54 [2018-12-08 19:19:03,444 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 19:19:03,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-12-08 19:19:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 19:19:03,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 19:19:03,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 19:19:03,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 19:19:03,445 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-12-08 19:19:03,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:19:03,445 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 19:19:03,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 19:19:03,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 19:19:03,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 19:19:03,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 19:19:04,491 WARN L180 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-08 19:19:04,500 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-12-08 19:19:04,500 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-12-08 19:19:04,500 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-12-08 19:19:04,500 INFO L448 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-12-08 19:19:04,500 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-12-08 19:19:04,500 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L444 ceAbstractionStarter]: At program point L139-2(lines 139 143) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L451 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 134 159) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L144-2(lines 144 148) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-12-08 19:19:04,501 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-12-08 19:19:04,502 INFO L444 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-12-08 19:19:04,502 INFO L448 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-12-08 19:19:04,502 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-12-08 19:19:04,502 INFO L444 ceAbstractionStarter]: At program point L96-2(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-12-08 19:19:04,502 INFO L448 ceAbstractionStarter]: For program point L96-3(lines 96 100) no Hoare annotation was computed. [2018-12-08 19:19:04,502 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1))) (and (not (bvsgt .cse0 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (bvslt .cse0 (_ bv1056964608 32))) (not (= (bvadd .cse0 (_ bv3229614080 32)) (_ bv0 32)))))) [2018-12-08 19:19:04,502 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:19:04,502 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:19:04,502 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:19:04,502 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:19:04,502 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 19:19:04,502 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:19:04,502 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 162 183) the Hoare annotation is: true [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 162 183) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point L177(line 177) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (and (exists ((__ieee754_acosf_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.sub roundNearestTiesToEven __ieee754_acosf_~x __ieee754_acosf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)) main_~res~0)) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse1)) (fp.gt main_~x~0 .cse1)))) [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 176 179) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 162 183) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point L173-1(line 173) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point L171(lines 171 180) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point L171-2(lines 171 180) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2018-12-08 19:19:04,503 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L451 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: true [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-12-08 19:19:04,504 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-12-08 19:19:04,505 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-12-08 19:19:04,505 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: true [2018-12-08 19:19:04,505 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-12-08 19:19:04,505 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-12-08 19:19:04,505 INFO L451 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: true [2018-12-08 19:19:04,505 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-12-08 19:19:04,505 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-12-08 19:19:04,505 INFO L451 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: true [2018-12-08 19:19:04,505 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-12-08 19:19:04,505 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-12-08 19:19:04,512 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,513 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,513 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,513 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:19:04 BoogieIcfgContainer [2018-12-08 19:19:04,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:19:04,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:19:04,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:19:04,516 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:19:04,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:18:21" (3/4) ... [2018-12-08 19:19:04,518 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 19:19:04,522 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-08 19:19:04,522 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-12-08 19:19:04,522 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 19:19:04,522 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 19:19:04,522 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-08 19:19:04,526 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-12-08 19:19:04,526 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-08 19:19:04,526 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 19:19:04,526 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 19:19:04,542 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-08 19:19:04,543 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2018-12-08 19:19:04,561 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_91674b54-aced-47d0-bc28-e819b2485fd9/bin-2019/utaipan/witness.graphml [2018-12-08 19:19:04,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:19:04,562 INFO L168 Benchmark]: Toolchain (without parser) took 53292.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 943.4 MB in the beginning and 832.4 MB in the end (delta: 111.0 MB). Peak memory consumption was 252.0 MB. Max. memory is 11.5 GB. [2018-12-08 19:19:04,562 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:19:04,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:19:04,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -202.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-08 19:19:04,563 INFO L168 Benchmark]: Boogie Preprocessor took 25.82 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. [2018-12-08 19:19:04,563 INFO L168 Benchmark]: RCFGBuilder took 9551.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-12-08 19:19:04,563 INFO L168 Benchmark]: TraceAbstraction took 43416.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.1 MB in the end (delta: 245.2 MB). Peak memory consumption was 245.2 MB. Max. memory is 11.5 GB. [2018-12-08 19:19:04,563 INFO L168 Benchmark]: Witness Printer took 45.86 ms. Allocated memory is still 1.2 GB. Free memory was 839.1 MB in the beginning and 832.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:19:04,564 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -202.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 9551.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43416.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.1 MB in the end (delta: 245.2 MB). Peak memory consumption was 245.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.86 ms. Allocated memory is still 1.2 GB. Free memory was 839.1 MB in the beginning and 832.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. 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_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant [2018-12-08 19:19:04,567 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,567 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,567 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,568 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,568 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,568 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,568 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-08 19:19:04,568 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 68 locations, 1 error locations. SAFE Result, 43.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 31.9s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 400 SDtfs, 149 SDslu, 1507 SDs, 0 SdLazy, 158 SolverSat, 7 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 27.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 149 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 28 QuantifiedInterpolants, 22666 SizeOfPredicates, 19 NumberOfNonLiveVariables, 660 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...