./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2da48247b776e6180d2b605d662157645a3da524 .......................................................................................................................................................................................................................................................................................................................................... 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_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2da48247b776e6180d2b605d662157645a3da524 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:33:46,764 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:33:46,765 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:33:46,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:33:46,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:33:46,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:33:46,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:33:46,776 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:33:46,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:33:46,778 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:33:46,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:33:46,779 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:33:46,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:33:46,780 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:33:46,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:33:46,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:33:46,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:33:46,783 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:33:46,784 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:33:46,785 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:33:46,786 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:33:46,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:33:46,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:33:46,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:33:46,788 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:33:46,788 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:33:46,789 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:33:46,789 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:33:46,789 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:33:46,790 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:33:46,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:33:46,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:33:46,791 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:33:46,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:33:46,791 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:33:46,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:33:46,792 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:33:46,801 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:33:46,801 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:33:46,802 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:33:46,802 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:33:46,802 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:33:46,802 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:33:46,802 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:33:46,802 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:33:46,802 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:33:46,803 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:33:46,803 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:33:46,803 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:33:46,803 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:33:46,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:33:46,804 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:33:46,804 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:33:46,804 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:33:46,804 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:33:46,804 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:33:46,804 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:33:46,804 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:33:46,805 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:33:46,805 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:33:46,805 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:33:46,805 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:33:46,805 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:33:46,805 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:33:46,805 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:33:46,806 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:33:46,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:33:46,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:33:46,806 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:33:46,806 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:33:46,806 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:33:46,806 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:33:46,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:33:46,807 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:33:46,807 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2da48247b776e6180d2b605d662157645a3da524 [2018-11-18 09:33:46,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:33:46,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:33:46,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:33:46,845 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:33:46,846 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:33:46,846 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-18 09:33:46,891 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/11154f986/3e0c44acac854a71ac8d5360d76b1863/FLAG594a7d3eb [2018-11-18 09:33:47,305 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:33:47,306 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-18 09:33:47,312 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/11154f986/3e0c44acac854a71ac8d5360d76b1863/FLAG594a7d3eb [2018-11-18 09:33:47,322 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/11154f986/3e0c44acac854a71ac8d5360d76b1863 [2018-11-18 09:33:47,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:33:47,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:33:47,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:33:47,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:33:47,328 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:33:47,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e18d399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47, skipping insertion in model container [2018-11-18 09:33:47,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:33:47,362 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:33:47,499 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:33:47,502 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:33:47,531 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:33:47,583 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:33:47,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47 WrapperNode [2018-11-18 09:33:47,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:33:47,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:33:47,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:33:47,584 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:33:47,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:33:47,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:33:47,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:33:47,603 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:33:47,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... [2018-11-18 09:33:47,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:33:47,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:33:47,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:33:47,629 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:33:47,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:33:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-18 09:33:47,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-18 09:33:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:33:47,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:33:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 09:33:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 09:33:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 09:33:47,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 09:33:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:33:47,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:33:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 09:33:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:33:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:33:47,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:33:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 09:33:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:33:47,665 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 09:33:47,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 09:33:47,954 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:33:47,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:33:47 BoogieIcfgContainer [2018-11-18 09:33:47,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:33:47,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:33:47,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:33:47,957 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:33:47,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:33:47" (1/3) ... [2018-11-18 09:33:47,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e7eb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:33:47, skipping insertion in model container [2018-11-18 09:33:47,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:47" (2/3) ... [2018-11-18 09:33:47,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e7eb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:33:47, skipping insertion in model container [2018-11-18 09:33:47,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:33:47" (3/3) ... [2018-11-18 09:33:47,959 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-11-18 09:33:47,965 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:33:47,970 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:33:47,979 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:33:48,001 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:33:48,001 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:33:48,001 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:33:48,001 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:33:48,001 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:33:48,001 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:33:48,001 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:33:48,001 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:33:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-11-18 09:33:48,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 09:33:48,019 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:33:48,019 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:48,021 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:33:48,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:48,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1304649765, now seen corresponding path program 1 times [2018-11-18 09:33:48,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:33:48,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:48,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:48,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:48,055 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:33:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:33:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:33:48,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:33:48,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:33:48,128 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:33:48,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 09:33:48,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:33:48,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:33:48,146 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-11-18 09:33:48,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:33:48,162 INFO L93 Difference]: Finished difference Result 130 states and 192 transitions. [2018-11-18 09:33:48,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:33:48,163 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 09:33:48,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:33:48,172 INFO L225 Difference]: With dead ends: 130 [2018-11-18 09:33:48,172 INFO L226 Difference]: Without dead ends: 65 [2018-11-18 09:33:48,175 INFO L604 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 [2018-11-18 09:33:48,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-18 09:33:48,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-18 09:33:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-18 09:33:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2018-11-18 09:33:48,202 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 22 [2018-11-18 09:33:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:33:48,202 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2018-11-18 09:33:48,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 09:33:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2018-11-18 09:33:48,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 09:33:48,204 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:33:48,205 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:48,205 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:33:48,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:48,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1275521735, now seen corresponding path program 1 times [2018-11-18 09:33:48,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:33:48,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:48,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:48,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:48,207 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:33:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:48,278 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:33:48,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:33:48 BoogieIcfgContainer [2018-11-18 09:33:48,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:33:48,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:33:48,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:33:48,310 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:33:48,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:33:47" (3/4) ... [2018-11-18 09:33:48,313 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:33:48,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:33:48,313 INFO L168 Benchmark]: Toolchain (without parser) took 989.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -107.4 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:33:48,314 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:33:48,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:33:48,315 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.89 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:33:48,315 INFO L168 Benchmark]: Boogie Preprocessor took 25.65 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. [2018-11-18 09:33:48,315 INFO L168 Benchmark]: RCFGBuilder took 326.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:33:48,316 INFO L168 Benchmark]: TraceAbstraction took 354.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:33:48,316 INFO L168 Benchmark]: Witness Printer took 2.86 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. [2018-11-18 09:33:48,318 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.89 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.65 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 326.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 354.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 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: 173]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 87, overapproximation of bitwiseAnd at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 168. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=6442450960, \old(one_sqrt)=6442450950, \old(pi)=6442450953, \old(pi)=6442450963, \old(pi)=6442450949, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450961, \old(pS2_acos)=6442450962, \old(pS3_acos)=6442450947, \old(pS4_acos)=6442450952, \old(pS5_acos)=6442450964, \old(qS1_acos)=6442450946, \old(qS2_acos)=6442450954, \old(qS3_acos)=6442450958, \old(qS4_acos)=6442450948, \old(tiny_sqrt)=6442450959, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L168] float x = -1.0f / 0.0f; 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, tiny_sqrt=1/1000000000000000000000000000000] [L169] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=6442450956, 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] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=6442450956, 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=6442450956] [L97] FCALL ieee_float_shape_type gf_u; [L98] FCALL gf_u.value = (x) [L99] EXPR, FCALL gf_u.word [L99] (hx) = gf_u.word [L100] COND FALSE !(0) VAL [\old(x)=6442450956, hx=2147483647, 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=6442450956] [L101] ix = hx & 0x7fffffff VAL [\old(x)=6442450956, hx=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=6442450956, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L103] COND TRUE hx > 0 [L104] RET return 0.0; VAL [\old(x)=6442450956, \result=0, hx=2147483647, ix=1065353216, 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=6442450956] [L169] 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=6442450956] [L169] float res = __ieee754_acosf(x); [L172] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L172] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L172] COND TRUE !isnan_float(res) [L173] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 69 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-5842f4b [2018-11-18 09:33:49,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:33:49,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:33:49,755 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:33:49,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:33:49,756 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:33:49,757 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:33:49,758 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:33:49,759 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:33:49,760 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:33:49,760 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:33:49,761 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:33:49,761 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:33:49,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:33:49,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:33:49,763 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:33:49,764 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:33:49,765 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:33:49,766 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:33:49,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:33:49,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:33:49,768 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:33:49,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:33:49,770 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:33:49,770 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:33:49,771 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:33:49,772 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:33:49,772 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:33:49,773 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:33:49,773 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:33:49,773 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:33:49,774 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:33:49,774 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:33:49,774 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:33:49,775 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:33:49,775 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:33:49,776 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 09:33:49,785 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:33:49,786 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:33:49,786 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:33:49,786 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:33:49,786 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:33:49,787 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:33:49,787 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:33:49,787 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:33:49,787 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:33:49,787 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:33:49,788 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:33:49,788 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:33:49,788 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:33:49,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:33:49,788 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:33:49,788 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:33:49,788 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:33:49,789 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 09:33:49,789 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 09:33:49,789 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:33:49,789 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:33:49,789 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:33:49,789 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:33:49,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:33:49,789 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:33:49,790 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:33:49,790 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:33:49,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:33:49,791 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:33:49,791 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:33:49,791 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:33:49,791 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 09:33:49,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:33:49,791 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 09:33:49,792 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 09:33:49,792 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_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2da48247b776e6180d2b605d662157645a3da524 [2018-11-18 09:33:49,821 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:33:49,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:33:49,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:33:49,833 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:33:49,834 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:33:49,834 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-18 09:33:49,875 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/051445c18/c5f5e09dd20c4b6fa684f98dde5420f4/FLAG672693ebb [2018-11-18 09:33:50,213 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:33:50,213 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-18 09:33:50,218 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/051445c18/c5f5e09dd20c4b6fa684f98dde5420f4/FLAG672693ebb [2018-11-18 09:33:50,637 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/data/051445c18/c5f5e09dd20c4b6fa684f98dde5420f4 [2018-11-18 09:33:50,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:33:50,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:33:50,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:33:50,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:33:50,644 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:33:50,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26edcba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50, skipping insertion in model container [2018-11-18 09:33:50,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:33:50,673 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:33:50,827 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:33:50,830 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:33:50,867 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:33:50,883 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:33:50,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50 WrapperNode [2018-11-18 09:33:50,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:33:50,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:33:50,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:33:50,884 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:33:50,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:33:50,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:33:50,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:33:50,904 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:33:50,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... [2018-11-18 09:33:50,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:33:50,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:33:50,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:33:50,978 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:33:50,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:33:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-18 09:33:51,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-18 09:33:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:33:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:33:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 09:33:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 09:33:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 09:33:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:33:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:33:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:33:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 09:33:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:33:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:33:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 09:33:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 09:33:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:33:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 09:33:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 09:33:51,149 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 09:34:00,438 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 09:34:00,968 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:34:00,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:34:00 BoogieIcfgContainer [2018-11-18 09:34:00,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:34:00,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:34:00,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:34:00,972 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:34:00,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:33:50" (1/3) ... [2018-11-18 09:34:00,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f33d3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:34:00, skipping insertion in model container [2018-11-18 09:34:00,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:50" (2/3) ... [2018-11-18 09:34:00,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f33d3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:34:00, skipping insertion in model container [2018-11-18 09:34:00,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:34:00" (3/3) ... [2018-11-18 09:34:00,974 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-11-18 09:34:00,979 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:34:00,984 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:34:00,995 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:34:01,014 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:34:01,014 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:34:01,014 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:34:01,014 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:34:01,014 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:34:01,015 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:34:01,015 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:34:01,015 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:34:01,015 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:34:01,025 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-11-18 09:34:01,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 09:34:01,029 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:34:01,029 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:34:01,031 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:34:01,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:34:01,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1172095667, now seen corresponding path program 1 times [2018-11-18 09:34:01,037 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:34:01,037 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 09:34:01,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:34:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:34:01,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:34:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:34:01,135 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:34:01,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:34:01,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:34:01,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 09:34:01,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:34:01,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:34:01,158 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-11-18 09:34:01,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:34:01,178 INFO L93 Difference]: Finished difference Result 128 states and 190 transitions. [2018-11-18 09:34:01,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:34:01,179 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 09:34:01,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:34:01,186 INFO L225 Difference]: With dead ends: 128 [2018-11-18 09:34:01,186 INFO L226 Difference]: Without dead ends: 64 [2018-11-18 09:34:01,189 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:34:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-18 09:34:01,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-11-18 09:34:01,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-18 09:34:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2018-11-18 09:34:01,220 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 21 [2018-11-18 09:34:01,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:34:01,221 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2018-11-18 09:34:01,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 09:34:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2018-11-18 09:34:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 09:34:01,222 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:34:01,223 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:34:01,223 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:34:01,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:34:01,223 INFO L82 PathProgramCache]: Analyzing trace with hash 858724847, now seen corresponding path program 1 times [2018-11-18 09:34:01,224 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:34:01,224 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 09:34:01,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:34:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:34:01,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:34:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:34:01,392 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:34:01,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:34:01,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 09:34:01,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:34:01,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:34:01,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:34:01,401 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand 7 states. [2018-11-18 09:34:07,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:34:07,219 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-11-18 09:34:07,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:34:07,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 09:34:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:34:07,223 INFO L225 Difference]: With dead ends: 76 [2018-11-18 09:34:07,223 INFO L226 Difference]: Without dead ends: 65 [2018-11-18 09:34:07,224 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:34:07,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-18 09:34:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2018-11-18 09:34:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-18 09:34:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2018-11-18 09:34:07,231 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 22 [2018-11-18 09:34:07,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:34:07,231 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2018-11-18 09:34:07,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:34:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2018-11-18 09:34:07,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 09:34:07,232 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:34:07,232 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:34:07,232 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:34:07,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:34:07,233 INFO L82 PathProgramCache]: Analyzing trace with hash -518664881, now seen corresponding path program 1 times [2018-11-18 09:34:07,233 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:34:07,233 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 09:34:07,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:34:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:34:07,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:34:09,950 WARN L180 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-18 09:34:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:34:12,023 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:34:12,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:34:12,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 09:34:12,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:34:12,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:34:12,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:34:12,033 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand 9 states. [2018-11-18 09:34:15,312 WARN L180 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 09:34:28,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:34:28,176 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2018-11-18 09:34:28,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:34:28,176 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 09:34:28,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:34:28,177 INFO L225 Difference]: With dead ends: 72 [2018-11-18 09:34:28,177 INFO L226 Difference]: Without dead ends: 65 [2018-11-18 09:34:28,178 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:34:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-18 09:34:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2018-11-18 09:34:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-18 09:34:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2018-11-18 09:34:28,185 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 22 [2018-11-18 09:34:28,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:34:28,186 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2018-11-18 09:34:28,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:34:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2018-11-18 09:34:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 09:34:28,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:34:28,187 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:34:28,187 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:34:28,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:34:28,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1070215275, now seen corresponding path program 1 times [2018-11-18 09:34:28,188 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:34:28,188 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 09:34:28,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:34:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:34:28,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:34:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:34:28,339 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:34:28,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:34:28,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 09:34:28,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:34:28,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:34:28,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:34:28,348 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand 7 states. [2018-11-18 09:34:33,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:34:33,571 INFO L93 Difference]: Finished difference Result 73 states and 86 transitions. [2018-11-18 09:34:33,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:34:33,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 09:34:33,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:34:33,573 INFO L225 Difference]: With dead ends: 73 [2018-11-18 09:34:33,573 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 09:34:33,573 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:34:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 09:34:33,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-18 09:34:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-18 09:34:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2018-11-18 09:34:33,578 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 24 [2018-11-18 09:34:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:34:33,578 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2018-11-18 09:34:33,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:34:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2018-11-18 09:34:33,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 09:34:33,579 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:34:33,579 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:34:33,580 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:34:33,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:34:33,580 INFO L82 PathProgramCache]: Analyzing trace with hash 873701770, now seen corresponding path program 1 times [2018-11-18 09:34:33,580 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:34:33,580 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 09:34:33,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:34:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:34:34,606 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:34:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:34:34,678 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:34:34,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:34:34,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 09:34:34,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:34:34,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:34:34,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:34:34,703 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 7 states. [2018-11-18 09:34:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:34:39,448 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2018-11-18 09:34:39,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:34:39,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 09:34:39,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:34:39,602 INFO L225 Difference]: With dead ends: 66 [2018-11-18 09:34:39,602 INFO L226 Difference]: Without dead ends: 55 [2018-11-18 09:34:39,603 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:34:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-18 09:34:39,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-18 09:34:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 09:34:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2018-11-18 09:34:39,606 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 24 [2018-11-18 09:34:39,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:34:39,606 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2018-11-18 09:34:39,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:34:39,607 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2018-11-18 09:34:39,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 09:34:39,607 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:34:39,607 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:34:39,607 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:34:39,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:34:39,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1112282903, now seen corresponding path program 1 times [2018-11-18 09:34:39,608 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:34:39,608 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 09:34:39,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:34:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:34:40,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:34:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:34:40,777 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:34:40,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:34:40,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 09:34:40,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:34:40,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:34:40,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:34:40,795 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand 7 states. [2018-11-18 09:34:43,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:34:43,358 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-18 09:34:43,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:34:43,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-18 09:34:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:34:43,359 INFO L225 Difference]: With dead ends: 55 [2018-11-18 09:34:43,359 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:34:43,360 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:34:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:34:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:34:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:34:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:34:43,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-18 09:34:43,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:34:43,361 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:34:43,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:34:43,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:34:43,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:34:43,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L421 ceAbstractionStarter]: At program point L139-3(lines 139 143) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__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)))) [2018-11-18 09:34:43,496 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-11-18 09:34:43,496 INFO L428 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L144-2(lines 134 159) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L144-3(lines 144 148) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L421 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__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)))) [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L421 ceAbstractionStarter]: At program point L96-3(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point L96-4(lines 96 100) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L421 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:34:43,497 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 09:34:43,498 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:34:43,498 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:34:43,498 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2018-11-18 09:34:43,498 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 162 178) the Hoare annotation is: true [2018-11-18 09:34:43,498 INFO L425 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2018-11-18 09:34:43,498 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 162 178) no Hoare annotation was computed. [2018-11-18 09:34:43,498 INFO L421 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-11-18 09:34:43,498 INFO L425 ceAbstractionStarter]: For program point L172-1(lines 172 175) no Hoare annotation was computed. [2018-11-18 09:34:43,498 INFO L421 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-18 09:34:43,498 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 162 178) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L169-1(line 169) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-18 09:34:43,499 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-18 09:34:43,500 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-18 09:34:43,501 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-18 09:34:43,501 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-18 09:34:43,501 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-11-18 09:34:43,501 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-18 09:34:43,506 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,510 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,512 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:34:43 BoogieIcfgContainer [2018-11-18 09:34:43,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:34:43,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:34:43,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:34:43,514 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:34:43,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:34:00" (3/4) ... [2018-11-18 09:34:43,516 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:34:43,520 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 09:34:43,520 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-18 09:34:43,520 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:34:43,520 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:34:43,520 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 09:34:43,524 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-18 09:34:43,525 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 09:34:43,525 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 09:34:43,525 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 09:34:43,541 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 09:34:43,541 WARN L220 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])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 1065353216bv32) && \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]) [2018-11-18 09:34:43,569 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_942263a1-5921-4805-948d-c397b20dc681/bin-2019/utaipan/witness.graphml [2018-11-18 09:34:43,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:34:43,570 INFO L168 Benchmark]: Toolchain (without parser) took 52930.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 949.7 MB in the beginning and 843.5 MB in the end (delta: 106.3 MB). Peak memory consumption was 229.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:34:43,571 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:34:43,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.21 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:34:43,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.34 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:34:43,571 INFO L168 Benchmark]: Boogie Preprocessor took 73.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:34:43,572 INFO L168 Benchmark]: RCFGBuilder took 9990.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:34:43,572 INFO L168 Benchmark]: TraceAbstraction took 42544.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.1 MB in the end (delta: 221.8 MB). Peak memory consumption was 221.8 MB. Max. memory is 11.5 GB. [2018-11-18 09:34:43,572 INFO L168 Benchmark]: Witness Printer took 55.98 ms. Allocated memory is still 1.2 GB. Free memory was 850.1 MB in the beginning and 843.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:34:43,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.21 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.34 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9990.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42544.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.1 MB in the end (delta: 221.8 MB). Peak memory consumption was 221.8 MB. Max. memory is 11.5 GB. * Witness Printer took 55.98 ms. Allocated memory is still 1.2 GB. Free memory was 850.1 MB in the beginning and 843.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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: 173]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant [2018-11-18 09:34:43,577 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,577 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,577 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,577 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,577 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,578 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,578 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,578 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,578 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,578 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,578 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,579 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,579 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,579 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,579 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 09:34:43,579 WARN L387 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])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 1065353216bv32) && \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]) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 68 locations, 1 error locations. SAFE Result, 42.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 34.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 398 SDtfs, 163 SDslu, 1562 SDs, 0 SdLazy, 174 SolverSat, 10 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 29.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 178 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 24 QuantifiedInterpolants, 18788 SizeOfPredicates, 20 NumberOfNonLiveVariables, 642 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...