./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8015c985f157600a44233f2d61865f454dda9bb9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8015c985f157600a44233f2d61865f454dda9bb9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:09:56,994 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:09:56,995 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:09:57,003 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:09:57,003 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:09:57,004 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:09:57,005 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:09:57,006 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:09:57,006 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:09:57,007 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:09:57,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:09:57,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:09:57,008 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:09:57,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:09:57,010 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:09:57,010 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:09:57,011 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:09:57,012 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:09:57,014 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:09:57,015 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:09:57,016 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:09:57,017 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:09:57,018 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:09:57,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:09:57,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:09:57,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:09:57,020 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:09:57,021 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:09:57,021 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:09:57,022 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:09:57,022 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:09:57,023 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:09:57,023 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:09:57,023 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:09:57,024 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:09:57,024 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:09:57,024 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 13:09:57,033 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:09:57,033 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:09:57,034 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:09:57,034 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:09:57,034 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:09:57,035 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:09:57,035 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:09:57,035 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:09:57,035 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:09:57,035 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:09:57,035 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:09:57,035 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:09:57,036 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:09:57,036 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:09:57,036 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:09:57,036 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:09:57,036 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:09:57,036 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:09:57,037 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:09:57,037 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:09:57,037 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:09:57,037 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:09:57,037 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:09:57,037 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:09:57,038 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:09:57,038 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:09:57,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:09:57,038 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:09:57,038 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:09:57,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:09:57,038 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_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-28 13:09:57,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:09:57,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:09:57,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:09:57,075 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:09:57,075 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:09:57,076 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 13:09:57,114 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/95e1f7d5b/b0a7566f22f34858b1935ae77877ac3c/FLAG6ed34c77f [2018-11-28 13:09:57,522 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:09:57,522 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 13:09:57,527 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/95e1f7d5b/b0a7566f22f34858b1935ae77877ac3c/FLAG6ed34c77f [2018-11-28 13:09:57,536 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/95e1f7d5b/b0a7566f22f34858b1935ae77877ac3c [2018-11-28 13:09:57,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:09:57,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:09:57,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:09:57,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:09:57,542 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:09:57,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a46762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57, skipping insertion in model container [2018-11-28 13:09:57,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:09:57,567 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:09:57,679 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:09:57,682 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:09:57,709 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:09:57,759 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:09:57,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57 WrapperNode [2018-11-28 13:09:57,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:09:57,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:09:57,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:09:57,760 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:09:57,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:09:57,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:09:57,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:09:57,779 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:09:57,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... [2018-11-28 13:09:57,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:09:57,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:09:57,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:09:57,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:09:57,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:09:57,848 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 13:09:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 13:09:57,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:09:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:09:57,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 13:09:57,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:09:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:09:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:09:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 13:09:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:09:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:09:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:09:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:09:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 13:09:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 13:09:57,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:09:57,850 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 13:09:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 13:09:58,189 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:09:58,189 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-11-28 13:09:58,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:58 BoogieIcfgContainer [2018-11-28 13:09:58,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:09:58,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:09:58,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:09:58,192 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:09:58,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:09:57" (1/3) ... [2018-11-28 13:09:58,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a5fb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:09:58, skipping insertion in model container [2018-11-28 13:09:58,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:57" (2/3) ... [2018-11-28 13:09:58,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a5fb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:09:58, skipping insertion in model container [2018-11-28 13:09:58,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:58" (3/3) ... [2018-11-28 13:09:58,195 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-28 13:09:58,204 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:09:58,211 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 13:09:58,225 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 13:09:58,252 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:09:58,252 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:09:58,252 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:09:58,252 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:09:58,253 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:09:58,253 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:09:58,253 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:09:58,253 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:09:58,253 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:09:58,269 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-11-28 13:09:58,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 13:09:58,275 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:58,275 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:58,277 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:58,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:58,282 INFO L82 PathProgramCache]: Analyzing trace with hash -905917540, now seen corresponding path program 1 times [2018-11-28 13:09:58,284 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:58,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:58,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:58,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:09:58,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:58,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:58,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:09:58,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 13:09:58,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 13:09:58,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:09:58,427 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-11-28 13:09:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:58,450 INFO L93 Difference]: Finished difference Result 134 states and 203 transitions. [2018-11-28 13:09:58,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:09:58,451 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-28 13:09:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:58,460 INFO L225 Difference]: With dead ends: 134 [2018-11-28 13:09:58,460 INFO L226 Difference]: Without dead ends: 67 [2018-11-28 13:09:58,463 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 [2018-11-28 13:09:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-28 13:09:58,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-11-28 13:09:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 13:09:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2018-11-28 13:09:58,493 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 18 [2018-11-28 13:09:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:58,494 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2018-11-28 13:09:58,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 13:09:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2018-11-28 13:09:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:09:58,495 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:58,495 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:58,495 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:58,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:58,495 INFO L82 PathProgramCache]: Analyzing trace with hash -185682695, now seen corresponding path program 1 times [2018-11-28 13:09:58,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:58,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:58,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:58,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:09:58,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:09:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:09:58,568 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:09:58,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:09:58 BoogieIcfgContainer [2018-11-28 13:09:58,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:09:58,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:09:58,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:09:58,593 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:09:58,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:58" (3/4) ... [2018-11-28 13:09:58,596 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:09:58,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:09:58,597 INFO L168 Benchmark]: Toolchain (without parser) took 1057.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -114.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:58,598 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:58,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:58,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.62 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:58,599 INFO L168 Benchmark]: Boogie Preprocessor took 27.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:58,599 INFO L168 Benchmark]: RCFGBuilder took 381.67 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:58,599 INFO L168 Benchmark]: TraceAbstraction took 402.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:58,600 INFO L168 Benchmark]: Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:58,603 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.62 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.99 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 381.67 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 402.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 182]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 181, overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L81-L88] 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)=6442450951, \old(pi)=6442450954, \old(pi)=6442450963, \old(pi)=6442450950, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450961, \old(pS2_acos)=6442450962, \old(pS3_acos)=6442450948, \old(pS4_acos)=6442450953, \old(pS5_acos)=6442450964, \old(qS1_acos)=6442450947, \old(qS2_acos)=6442450955, \old(qS3_acos)=6442450958, \old(qS4_acos)=6442450949, \old(tiny_sqrt)=6442450959, 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] [L177] float 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=1] [L178] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=1, 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] [L91] float z, p, q, r, w, s, c, df; [L92] __int32_t hx, ix; VAL [\old(x)=1, 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, x=1] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (x) [L96] EXPR gf_u.word [L96] (hx) = gf_u.word [L98] ix = hx & 0x7fffffff VAL [\old(x)=1, 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=1] [L99] COND TRUE ix == 0x3f800000 VAL [\old(x)=1, hx=2147483647, ix=1065353216, 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, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L100] COND TRUE hx > 0 [L101] return 0.0; VAL [\old(x)=1, \result=0, 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=1] [L178] RET, EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, 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=1] [L178] float res = __ieee754_acosf(x); [L181] EXPR res == 0.0f && __signbit_float(res) == 0 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, res=0, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L181] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L182] __VERIFIER_error() VAL [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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 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=71occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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 0.1.23-0cd3be1 [2018-11-28 13:10:00,141 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:10:00,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:10:00,150 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:10:00,150 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:10:00,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:10:00,152 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:10:00,153 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:10:00,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:10:00,155 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:10:00,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:10:00,156 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:10:00,156 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:10:00,157 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:10:00,158 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:10:00,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:10:00,159 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:10:00,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:10:00,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:10:00,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:10:00,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:10:00,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:10:00,166 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:10:00,166 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:10:00,166 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:10:00,167 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:10:00,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:10:00,168 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:10:00,168 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:10:00,169 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:10:00,169 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:10:00,170 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:10:00,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:10:00,170 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:10:00,171 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:10:00,171 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:10:00,172 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 13:10:00,186 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:10:00,186 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:10:00,187 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:10:00,187 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:10:00,188 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:10:00,188 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:10:00,188 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:10:00,188 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:10:00,188 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:10:00,188 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:10:00,189 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:10:00,190 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:10:00,190 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:10:00,190 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:10:00,190 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:10:00,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:10:00,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:10:00,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:10:00,191 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:10:00,191 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:10:00,191 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:10:00,191 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 13:10:00,191 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:10:00,191 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 13:10:00,191 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 13:10:00,192 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_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-28 13:10:00,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:10:00,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:10:00,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:10:00,230 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:10:00,231 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:10:00,231 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 13:10:00,276 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/d1c759385/df50bc0613db44788d3055e78e64c1c3/FLAG24a2c4c55 [2018-11-28 13:10:00,630 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:10:00,630 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 13:10:00,635 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/d1c759385/df50bc0613db44788d3055e78e64c1c3/FLAG24a2c4c55 [2018-11-28 13:10:00,643 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/data/d1c759385/df50bc0613db44788d3055e78e64c1c3 [2018-11-28 13:10:00,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:10:00,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:10:00,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:10:00,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:10:00,650 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:10:00,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a8b594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00, skipping insertion in model container [2018-11-28 13:10:00,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:10:00,675 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:10:00,823 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:10:00,828 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:10:00,868 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:10:00,888 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:10:00,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00 WrapperNode [2018-11-28 13:10:00,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:10:00,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:10:00,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:10:00,889 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:10:00,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:10:00,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:10:00,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:10:00,954 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:10:00,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... [2018-11-28 13:10:00,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:10:00,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:10:00,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:10:00,987 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:10:00,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:10:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 13:10:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 13:10:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:10:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:10:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 13:10:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:10:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:10:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:10:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 13:10:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:10:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:10:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 13:10:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 13:10:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 13:10:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 13:10:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:10:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 13:10:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 13:10:03,345 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:10:10,159 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:10:10,219 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:10:10,595 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:10:10,764 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:10:10,764 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-11-28 13:10:10,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:10 BoogieIcfgContainer [2018-11-28 13:10:10,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:10:10,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:10:10,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:10:10,767 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:10:10,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:10:00" (1/3) ... [2018-11-28 13:10:10,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1525f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:10:10, skipping insertion in model container [2018-11-28 13:10:10,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:00" (2/3) ... [2018-11-28 13:10:10,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1525f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:10:10, skipping insertion in model container [2018-11-28 13:10:10,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:10" (3/3) ... [2018-11-28 13:10:10,769 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-28 13:10:10,774 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:10:10,779 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 13:10:10,787 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 13:10:10,806 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:10:10,806 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:10:10,807 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:10:10,807 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:10:10,807 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:10:10,807 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:10:10,807 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:10:10,807 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:10:10,807 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:10:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-11-28 13:10:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 13:10:10,822 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:10,823 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:10,824 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:10,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash -905917540, now seen corresponding path program 1 times [2018-11-28 13:10:10,830 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:10,830 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 13:10:10,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:10,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:10,909 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:10:10,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:10,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:10:10,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 13:10:10,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 13:10:10,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:10:10,928 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-11-28 13:10:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:10,949 INFO L93 Difference]: Finished difference Result 134 states and 203 transitions. [2018-11-28 13:10:10,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:10:10,950 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-28 13:10:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:10,957 INFO L225 Difference]: With dead ends: 134 [2018-11-28 13:10:10,957 INFO L226 Difference]: Without dead ends: 67 [2018-11-28 13:10:10,960 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:10:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-28 13:10:10,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-11-28 13:10:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 13:10:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2018-11-28 13:10:10,996 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 18 [2018-11-28 13:10:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:10,997 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2018-11-28 13:10:10,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 13:10:10,997 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2018-11-28 13:10:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:10:10,998 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:10,998 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:10,998 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:10,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:10,999 INFO L82 PathProgramCache]: Analyzing trace with hash -185682695, now seen corresponding path program 1 times [2018-11-28 13:10:10,999 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:10,999 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 13:10:11,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:11,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:11,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:11,111 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:10:11,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:11,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:10:11,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:10:11,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:10:11,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:10:11,123 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand 5 states. [2018-11-28 13:10:18,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:18,622 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2018-11-28 13:10:18,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:10:18,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-28 13:10:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:18,818 INFO L225 Difference]: With dead ends: 74 [2018-11-28 13:10:18,818 INFO L226 Difference]: Without dead ends: 71 [2018-11-28 13:10:18,818 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:10:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-28 13:10:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-11-28 13:10:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 13:10:18,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2018-11-28 13:10:18,825 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 19 [2018-11-28 13:10:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:18,825 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2018-11-28 13:10:18,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:10:18,826 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2018-11-28 13:10:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:10:18,826 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:18,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:18,827 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:18,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:18,827 INFO L82 PathProgramCache]: Analyzing trace with hash 701820986, now seen corresponding path program 1 times [2018-11-28 13:10:18,827 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:18,828 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 13:10:18,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:18,957 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:19,032 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:10:19,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:19,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:10:19,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:10:19,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:10:19,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:10:19,041 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand 6 states. [2018-11-28 13:10:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:24,811 INFO L93 Difference]: Finished difference Result 88 states and 106 transitions. [2018-11-28 13:10:24,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:10:24,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 13:10:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:24,815 INFO L225 Difference]: With dead ends: 88 [2018-11-28 13:10:24,815 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 13:10:24,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:10:24,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 13:10:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-11-28 13:10:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 13:10:24,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-11-28 13:10:24,823 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 19 [2018-11-28 13:10:24,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:24,823 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-11-28 13:10:24,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:10:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-11-28 13:10:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:10:24,824 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:24,824 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:24,824 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:24,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash 80985497, now seen corresponding path program 1 times [2018-11-28 13:10:24,825 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:24,825 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 13:10:24,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:25,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:25,127 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:10:25,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:25,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:10:25,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:10:25,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:10:25,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:10:25,137 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-11-28 13:10:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:30,719 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2018-11-28 13:10:30,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:10:30,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-28 13:10:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:30,721 INFO L225 Difference]: With dead ends: 86 [2018-11-28 13:10:30,721 INFO L226 Difference]: Without dead ends: 64 [2018-11-28 13:10:30,722 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:10:30,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-28 13:10:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-11-28 13:10:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 13:10:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2018-11-28 13:10:30,728 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 19 [2018-11-28 13:10:30,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:30,728 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2018-11-28 13:10:30,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:10:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2018-11-28 13:10:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:10:30,729 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:30,729 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] [2018-11-28 13:10:30,731 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:30,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1754919774, now seen corresponding path program 1 times [2018-11-28 13:10:30,732 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:30,732 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 13:10:30,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:31,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:31,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:31,879 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:10:31,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:31,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:10:31,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:10:31,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:10:31,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:10:31,903 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 7 states. [2018-11-28 13:10:36,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:36,723 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2018-11-28 13:10:36,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:10:36,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-28 13:10:36,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:36,881 INFO L225 Difference]: With dead ends: 79 [2018-11-28 13:10:36,881 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 13:10:36,881 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:10:36,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 13:10:36,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-11-28 13:10:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-28 13:10:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2018-11-28 13:10:36,887 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 21 [2018-11-28 13:10:36,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:36,887 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2018-11-28 13:10:36,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:10:36,888 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-11-28 13:10:36,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 13:10:36,888 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:36,889 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] [2018-11-28 13:10:36,889 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:36,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:36,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1522642984, now seen corresponding path program 1 times [2018-11-28 13:10:36,889 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:36,890 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/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 [2018-11-28 13:10:36,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:36,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:37,058 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:10:37,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:37,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 13:10:37,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:10:37,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:10:37,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:10:37,066 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 10 states. [2018-11-28 13:10:39,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:39,426 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-11-28 13:10:39,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:10:39,427 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-11-28 13:10:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:39,427 INFO L225 Difference]: With dead ends: 68 [2018-11-28 13:10:39,428 INFO L226 Difference]: Without dead ends: 58 [2018-11-28 13:10:39,428 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-28 13:10:39,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-28 13:10:39,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-28 13:10:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-28 13:10:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2018-11-28 13:10:39,432 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 27 [2018-11-28 13:10:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:39,432 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-11-28 13:10:39,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:10:39,432 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2018-11-28 13:10:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 13:10:39,433 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:39,433 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] [2018-11-28 13:10:39,433 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:39,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:39,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1281974030, now seen corresponding path program 1 times [2018-11-28 13:10:39,434 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:39,434 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-28 13:10:39,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:40,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:40,646 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:10:40,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:40,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:10:40,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:10:40,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:10:40,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:10:40,666 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 7 states. [2018-11-28 13:10:43,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:43,124 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2018-11-28 13:10:43,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:10:43,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-28 13:10:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:43,126 INFO L225 Difference]: With dead ends: 58 [2018-11-28 13:10:43,126 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:10:43,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:10:43,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:10:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:10:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:10:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:10:43,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-28 13:10:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:43,127 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:10:43,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:10:43,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:10:43,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:10:43,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:10:43,246 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2018-11-28 13:10:43,246 INFO L444 ceAbstractionStarter]: At program point L93-2(lines 93 97) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-28 13:10:43,246 INFO L448 ceAbstractionStarter]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2018-11-28 13:10:43,246 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 90 157) no Hoare annotation was computed. [2018-11-28 13:10:43,246 INFO L451 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 90 157) the Hoare annotation is: true [2018-11-28 13:10:43,247 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__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 (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32))))) [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 156) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 156) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L444 ceAbstractionStarter]: At program point L136-2(lines 136 140) 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) (= |__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))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__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 (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 106) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 90 157) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L141(lines 141 145) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2018-11-28 13:10:43,247 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 131 156) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point L141-2(lines 141 145) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point L104(lines 104 106) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 103) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L444 ceAbstractionStarter]: At program point L134(line 134) 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) (= |__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))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__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 (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point L134-1(line 134) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 13:10:43,248 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 171 187) the Hoare annotation is: true [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 171 187) no Hoare annotation was computed. [2018-11-28 13:10:43,248 INFO L448 ceAbstractionStarter]: For program point L182(line 182) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L444 ceAbstractionStarter]: At program point L181-1(line 181) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) main_~res~0) |main_#t~short17| (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0)) [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point L181-2(line 181) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L444 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0) [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point L178-1(line 178) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point L181-4(lines 181 184) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 171 187) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 162 166) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L444 ceAbstractionStarter]: At program point L162-2(lines 162 166) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point L162-3(lines 162 166) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 159 169) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 159 169) the Hoare annotation is: true [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 159 169) no Hoare annotation was computed. [2018-11-28 13:10:43,249 INFO L448 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L451 ceAbstractionStarter]: At program point L73-2(lines 73 77) the Hoare annotation is: true [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L451 ceAbstractionStarter]: At program point L36-3(lines 36 37) the Hoare annotation is: true [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-28 13:10:43,250 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-28 13:10:43,250 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L451 ceAbstractionStarter]: At program point L50-2(lines 50 59) the Hoare annotation is: true [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-28 13:10:43,251 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-28 13:10:43,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:10:43 BoogieIcfgContainer [2018-11-28 13:10:43,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:10:43,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:10:43,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:10:43,265 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:10:43,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:10" (3/4) ... [2018-11-28 13:10:43,267 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:10:43,271 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-28 13:10:43,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:10:43,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:10:43,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-28 13:10:43,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-28 13:10:43,276 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-11-28 13:10:43,277 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-28 13:10:43,277 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 13:10:43,277 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 13:10:43,294 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 13:10:43,294 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 13:10:43,295 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) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 3229614080bv32) == 0bv32)) [2018-11-28 13:10:43,322 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d7506e8-856a-4b7d-9722-231184744124/bin-2019/uautomizer/witness.graphml [2018-11-28 13:10:43,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:10:43,323 INFO L168 Benchmark]: Toolchain (without parser) took 42676.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 943.4 MB in the beginning and 858.2 MB in the end (delta: 85.1 MB). Peak memory consumption was 241.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:43,324 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. [2018-11-28 13:10:43,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.12 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. [2018-11-28 13:10:43,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -224.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:43,325 INFO L168 Benchmark]: Boogie Preprocessor took 33.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:43,325 INFO L168 Benchmark]: RCFGBuilder took 9777.95 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:43,325 INFO L168 Benchmark]: TraceAbstraction took 32499.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 864.9 MB in the end (delta: 240.7 MB). Peak memory consumption was 240.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:43,325 INFO L168 Benchmark]: Witness Printer took 57.89 ms. Allocated memory is still 1.2 GB. Free memory was 864.9 MB in the beginning and 858.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:43,328 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 241.12 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 64.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -224.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9777.95 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32499.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 864.9 MB in the end (delta: 240.7 MB). Peak memory consumption was 240.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.89 ms. Allocated memory is still 1.2 GB. Free memory was 864.9 MB in the beginning and 858.2 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] - 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: 182]: 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: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant [2018-11-28 13:10:43,331 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,333 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,333 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,333 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,333 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,333 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 13:10:43,334 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) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 3229614080bv32) == 0bv32)) - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. SAFE Result, 32.4s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 28.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 497 SDtfs, 164 SDslu, 1832 SDs, 0 SdLazy, 194 SolverSat, 14 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 26.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 43 PreInvPairs, 57 NumberOfFragments, 149 HoareAnnotationTreeSize, 43 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 146 ConstructedInterpolants, 22 QuantifiedInterpolants, 16763 SizeOfPredicates, 20 NumberOfNonLiveVariables, 743 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...