./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 ................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:57:39,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:57:39,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:57:39,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:57:39,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:57:39,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:57:39,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:57:39,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:57:39,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:57:39,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:57:39,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:57:39,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:57:39,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:57:39,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:57:39,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:57:39,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:57:39,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:57:39,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:57:39,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:57:39,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:57:39,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:57:39,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:57:39,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:57:39,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:57:39,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:57:39,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:57:39,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:57:39,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:57:39,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:57:39,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:57:39,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:57:39,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:57:39,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:57:39,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:57:39,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:57:39,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:57:39,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:57:39,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:57:39,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:57:39,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:57:39,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:57:39,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:57:39,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:57:39,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:57:39,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:57:39,910 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:57:39,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:57:39,910 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:57:39,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:57:39,911 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:57:39,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:57:39,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:57:39,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:57:39,913 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:57:39,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:57:39,913 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:57:39,914 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:57:39,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:57:39,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:57:39,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:57:39,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:57:39,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:57:39,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:57:39,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:57:39,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:57:39,917 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:57:39,917 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:57:39,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:57:39,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:57:39,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:57:39,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:57:39,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:57:39,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:57:39,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:57:39,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:57:39,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:57:39,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:57:39,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:57:39,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:57:39,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:57:39,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:57:39,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:57:39,923 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 [2020-11-30 02:57:40,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:57:40,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:57:40,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:57:40,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:57:40,257 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:57:40,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-11-30 02:57:40,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/eea239d1e/36e24aaaf9484b2588dcbe4137f66f5c/FLAG90861a22f [2020-11-30 02:57:40,857 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:57:40,858 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-11-30 02:57:40,865 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/eea239d1e/36e24aaaf9484b2588dcbe4137f66f5c/FLAG90861a22f [2020-11-30 02:57:41,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/eea239d1e/36e24aaaf9484b2588dcbe4137f66f5c [2020-11-30 02:57:41,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:57:41,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:57:41,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:57:41,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:57:41,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:57:41,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df2c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41, skipping insertion in model container [2020-11-30 02:57:41,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:57:41,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:57:41,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:57:41,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:57:41,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:57:41,597 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:57:41,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41 WrapperNode [2020-11-30 02:57:41,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:57:41,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:57:41,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:57:41,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:57:41,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:57:41,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:57:41,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:57:41,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:57:41,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... [2020-11-30 02:57:41,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:57:41,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:57:41,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:57:41,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:57:41,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/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 [2020-11-30 02:57:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:57:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:57:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:57:41,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 02:57:41,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 02:57:41,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:57:41,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:57:41,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:57:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 02:57:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:57:42,666 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:57:42,666 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-30 02:57:42,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:57:42 BoogieIcfgContainer [2020-11-30 02:57:42,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:57:42,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:57:42,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:57:42,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:57:42,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:57:41" (1/3) ... [2020-11-30 02:57:42,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3662b1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:57:42, skipping insertion in model container [2020-11-30 02:57:42,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:41" (2/3) ... [2020-11-30 02:57:42,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3662b1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:57:42, skipping insertion in model container [2020-11-30 02:57:42,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:57:42" (3/3) ... [2020-11-30 02:57:42,676 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2020-11-30 02:57:42,684 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:57:42,687 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:57:42,721 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:57:42,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:57:42,761 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:57:42,762 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:57:42,762 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:57:42,762 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:57:42,762 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:57:42,762 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:57:42,763 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:57:42,774 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 02:57:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:57:42,779 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:57:42,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:57:42,781 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:57:42,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:57:42,787 INFO L82 PathProgramCache]: Analyzing trace with hash 530996632, now seen corresponding path program 1 times [2020-11-30 02:57:42,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:57:42,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157626440] [2020-11-30 02:57:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:57:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:57:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:57:42,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157626440] [2020-11-30 02:57:42,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:57:42,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:57:42,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247969992] [2020-11-30 02:57:42,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:57:42,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:57:42,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:57:42,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:57:42,927 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 02:57:42,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:57:42,944 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2020-11-30 02:57:42,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:57:42,946 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 02:57:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:57:42,954 INFO L225 Difference]: With dead ends: 67 [2020-11-30 02:57:42,955 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 02:57:42,958 INFO L677 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 [2020-11-30 02:57:42,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 02:57:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-30 02:57:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 02:57:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2020-11-30 02:57:42,992 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2020-11-30 02:57:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:57:42,992 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2020-11-30 02:57:42,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:57:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-11-30 02:57:42,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:57:42,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:57:42,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:57:42,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:57:42,994 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:57:42,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:57:42,995 INFO L82 PathProgramCache]: Analyzing trace with hash 539083387, now seen corresponding path program 1 times [2020-11-30 02:57:42,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:57:42,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162556817] [2020-11-30 02:57:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:57:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:57:43,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:57:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:57:43,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:57:43,204 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:57:43,204 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:57:43,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:57:43,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:57:43 BoogieIcfgContainer [2020-11-30 02:57:43,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:57:43,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:57:43,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:57:43,261 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:57:43,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:57:42" (3/4) ... [2020-11-30 02:57:43,265 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:57:43,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:57:43,271 INFO L168 Benchmark]: Toolchain (without parser) took 2070.04 ms. Allocated memory is still 98.6 MB. Free memory was 66.5 MB in the beginning and 54.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:57:43,273 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 50.9 MB in the beginning and 50.9 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:57:43,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.32 ms. Allocated memory is still 98.6 MB. Free memory was 66.5 MB in the beginning and 75.4 MB in the end (delta: -8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:57:43,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.30 ms. Allocated memory is still 98.6 MB. Free memory was 75.4 MB in the beginning and 73.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:57:43,277 INFO L168 Benchmark]: Boogie Preprocessor took 36.25 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 71.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:57:43,278 INFO L168 Benchmark]: RCFGBuilder took 974.59 ms. Allocated memory is still 98.6 MB. Free memory was 71.7 MB in the beginning and 40.3 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:57:43,280 INFO L168 Benchmark]: TraceAbstraction took 590.69 ms. Allocated memory is still 98.6 MB. Free memory was 39.9 MB in the beginning and 54.5 MB in the end (delta: -14.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:57:43,281 INFO L168 Benchmark]: Witness Printer took 6.92 ms. Allocated memory is still 98.6 MB. Free memory was 54.5 MB in the beginning and 54.0 MB in the end (delta: 504.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:57:43,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 50.9 MB in the beginning and 50.9 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.32 ms. Allocated memory is still 98.6 MB. Free memory was 66.5 MB in the beginning and 75.4 MB in the end (delta: -8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.30 ms. Allocated memory is still 98.6 MB. Free memory was 75.4 MB in the beginning and 73.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.25 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 71.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 974.59 ms. Allocated memory is still 98.6 MB. Free memory was 71.7 MB in the beginning and 40.3 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 590.69 ms. Allocated memory is still 98.6 MB. Free memory was 39.9 MB in the beginning and 54.5 MB in the end (delta: -14.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.92 ms. Allocated memory is still 98.6 MB. Free memory was 54.5 MB in the beginning and 54.0 MB in the end (delta: 504.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L118] float x = __VERIFIER_nondet_float(); [L119] float y = 0.0f; [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; [L124] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1121a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:57:46,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:57:46,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:57:46,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:57:46,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:57:46,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:57:46,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:57:46,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:57:46,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:57:46,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:57:46,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:57:46,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:57:46,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:57:46,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:57:46,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:57:46,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:57:46,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:57:46,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:57:46,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:57:46,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:57:46,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:57:46,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:57:46,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:57:46,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:57:46,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:57:46,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:57:46,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:57:46,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:57:46,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:57:46,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:57:46,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:57:46,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:57:46,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:57:46,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:57:46,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:57:46,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:57:46,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:57:46,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:57:46,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:57:46,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:57:46,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:57:46,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:57:46,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:57:46,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:57:46,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:57:46,293 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:57:46,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:57:46,294 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:57:46,294 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:57:46,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:57:46,295 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:57:46,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:57:46,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:57:46,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:57:46,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:57:46,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:57:46,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:57:46,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:57:46,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:57:46,299 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:57:46,300 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:57:46,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:57:46,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:57:46,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:57:46,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:57:46,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:57:46,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:57:46,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:57:46,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:57:46,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:57:46,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:57:46,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:57:46,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:57:46,303 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:57:46,303 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:57:46,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:57:46,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:57:46,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:57:46,305 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 [2020-11-30 02:57:46,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:57:46,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:57:46,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:57:46,867 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:57:46,869 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:57:46,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-11-30 02:57:46,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/542a54901/91bbdad1bd7b4616a22fb8d0ccf018f7/FLAGaea91bb62 [2020-11-30 02:57:47,584 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:57:47,591 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-11-30 02:57:47,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/542a54901/91bbdad1bd7b4616a22fb8d0ccf018f7/FLAGaea91bb62 [2020-11-30 02:57:47,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/data/542a54901/91bbdad1bd7b4616a22fb8d0ccf018f7 [2020-11-30 02:57:47,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:57:47,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:57:47,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:57:47,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:57:47,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:57:47,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:57:47" (1/1) ... [2020-11-30 02:57:47,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c205524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:47, skipping insertion in model container [2020-11-30 02:57:47,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:57:47" (1/1) ... [2020-11-30 02:57:47,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:57:47,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:57:48,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:57:48,194 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:57:48,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:57:48,319 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:57:48,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48 WrapperNode [2020-11-30 02:57:48,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:57:48,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:57:48,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:57:48,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:57:48,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:57:48,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:57:48,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:57:48,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:57:48,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... [2020-11-30 02:57:48,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:57:48,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:57:48,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:57:48,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:57:48,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/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 [2020-11-30 02:57:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 02:57:48,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:57:48,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:57:48,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 02:57:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:57:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:57:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:57:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 02:57:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:57:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:57:50,912 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:57:50,914 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-30 02:57:50,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:57:50 BoogieIcfgContainer [2020-11-30 02:57:50,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:57:50,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:57:50,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:57:50,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:57:50,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:57:47" (1/3) ... [2020-11-30 02:57:50,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed3147f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:57:50, skipping insertion in model container [2020-11-30 02:57:50,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:57:48" (2/3) ... [2020-11-30 02:57:50,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed3147f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:57:50, skipping insertion in model container [2020-11-30 02:57:50,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:57:50" (3/3) ... [2020-11-30 02:57:50,928 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2020-11-30 02:57:50,948 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:57:50,954 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:57:50,969 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:57:51,010 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:57:51,010 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:57:51,010 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:57:51,011 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:57:51,011 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:57:51,011 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:57:51,011 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:57:51,011 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:57:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-11-30 02:57:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:57:51,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:57:51,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:57:51,035 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:57:51,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:57:51,041 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-11-30 02:57:51,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:57:51,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597554074] [2020-11-30 02:57:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/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 [2020-11-30 02:57:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:57:51,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:57:51,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:57:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:57:51,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:57:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:57:51,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597554074] [2020-11-30 02:57:51,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:57:51,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:57:51,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037291116] [2020-11-30 02:57:51,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:57:51,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:57:51,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:57:51,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:57:51,465 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-11-30 02:57:51,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:57:51,490 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-11-30 02:57:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:57:51,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 02:57:51,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:57:51,503 INFO L225 Difference]: With dead ends: 83 [2020-11-30 02:57:51,504 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 02:57:51,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:57:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 02:57:51,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 02:57:51,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 02:57:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-30 02:57:51,550 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-11-30 02:57:51,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:57:51,551 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-30 02:57:51,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:57:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-30 02:57:51,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:57:51,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:57:51,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:57:51,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:57:51,769 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:57:51,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:57:51,770 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-11-30 02:57:51,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:57:51,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092787899] [2020-11-30 02:57:51,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/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 [2020-11-30 02:57:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:57:52,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 02:57:52,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:57:54,319 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-11-30 02:57:55,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:57:55,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:57:59,665 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-30 02:57:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:57:59,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092787899] [2020-11-30 02:57:59,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:57:59,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-30 02:57:59,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591348895] [2020-11-30 02:57:59,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 02:57:59,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:57:59,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 02:57:59,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2020-11-30 02:57:59,966 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2020-11-30 02:58:06,477 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2020-11-30 02:58:11,354 WARN L193 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-11-30 02:58:16,144 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2020-11-30 02:58:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:16,349 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-11-30 02:58:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 02:58:16,355 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-30 02:58:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:16,356 INFO L225 Difference]: With dead ends: 44 [2020-11-30 02:58:16,357 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 02:58:16,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2020-11-30 02:58:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 02:58:16,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 02:58:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 02:58:16,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-11-30 02:58:16,367 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-11-30 02:58:16,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:16,367 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-11-30 02:58:16,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 02:58:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-11-30 02:58:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 02:58:16,368 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:16,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:58:16,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:58:16,577 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:58:16,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:16,579 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-11-30 02:58:16,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:16,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72621049] [2020-11-30 02:58:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/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 [2020-11-30 02:58:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:58:16,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:58:16,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:58:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:16,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:58:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:16,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72621049] [2020-11-30 02:58:16,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:58:16,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 6 [2020-11-30 02:58:16,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746265013] [2020-11-30 02:58:16,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:58:16,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:58:16,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:58:16,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:58:16,863 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2020-11-30 02:58:16,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:16,910 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-30 02:58:16,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:58:16,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-30 02:58:16,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:16,913 INFO L225 Difference]: With dead ends: 39 [2020-11-30 02:58:16,913 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:58:16,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 02:58:16,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:58:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:58:16,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:58:16,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:58:16,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-30 02:58:16,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:16,915 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:58:16,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:58:16,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:58:16,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:58:17,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:58:17,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:58:18,694 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 13 [2020-11-30 02:58:21,148 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 16 [2020-11-30 02:58:21,157 INFO L274 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-11-30 02:58:21,157 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-11-30 02:58:21,157 INFO L274 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 02:58:21,157 INFO L274 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-11-30 02:58:21,158 INFO L270 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-11-30 02:58:21,158 INFO L274 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-11-30 02:58:21,158 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 02:58:21,158 INFO L270 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-11-30 02:58:21,158 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:58:21,158 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 02:58:21,158 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:58:21,158 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L277 CegarLoopResult]: At program point L129(lines 112 130) the Hoare annotation is: true [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-11-30 02:58:21,159 INFO L274 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-11-30 02:58:21,160 INFO L270 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0))))) [2020-11-30 02:58:21,160 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-30 02:58:21,160 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:58:21,160 INFO L274 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-11-30 02:58:21,160 INFO L270 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-11-30 02:58:21,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 02:58:21,160 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-11-30 02:58:21,161 INFO L270 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-11-30 02:58:21,161 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-30 02:58:21,161 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-30 02:58:21,161 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:58:21,161 INFO L274 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-11-30 02:58:21,161 INFO L274 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2020-11-30 02:58:21,162 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-30 02:58:21,162 INFO L274 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 02:58:21,162 INFO L274 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-11-30 02:58:21,162 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-11-30 02:58:21,162 INFO L270 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-11-30 02:58:21,162 INFO L274 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-11-30 02:58:21,162 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-11-30 02:58:21,162 INFO L270 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-11-30 02:58:21,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,174 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,187 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:58:21 BoogieIcfgContainer [2020-11-30 02:58:21,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:58:21,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:58:21,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:58:21,190 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:58:21,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:57:50" (3/4) ... [2020-11-30 02:58:21,195 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:58:21,207 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 02:58:21,207 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 02:58:21,207 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:58:21,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:58:21,242 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6a62478f-1998-4d45-baf2-9bba1535a94a/bin/utaipan/witness.graphml [2020-11-30 02:58:21,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:58:21,244 INFO L168 Benchmark]: Toolchain (without parser) took 33326.86 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 59.3 MB in the beginning and 48.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:21,245 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 31.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:58:21,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.26 ms. Allocated memory is still 79.7 MB. Free memory was 59.3 MB in the beginning and 64.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:21,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.31 ms. Allocated memory is still 79.7 MB. Free memory was 64.1 MB in the beginning and 62.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:21,247 INFO L168 Benchmark]: Boogie Preprocessor took 80.97 ms. Allocated memory is still 79.7 MB. Free memory was 62.4 MB in the beginning and 60.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:21,247 INFO L168 Benchmark]: RCFGBuilder took 2407.76 ms. Allocated memory is still 79.7 MB. Free memory was 60.3 MB in the beginning and 58.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:21,248 INFO L168 Benchmark]: TraceAbstraction took 30269.69 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 58.2 MB in the beginning and 52.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:21,249 INFO L168 Benchmark]: Witness Printer took 52.65 ms. Allocated memory is still 107.0 MB. Free memory was 52.1 MB in the beginning and 48.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:21,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 31.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 401.26 ms. Allocated memory is still 79.7 MB. Free memory was 59.3 MB in the beginning and 64.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.31 ms. Allocated memory is still 79.7 MB. Free memory was 64.1 MB in the beginning and 62.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.97 ms. Allocated memory is still 79.7 MB. Free memory was 62.4 MB in the beginning and 60.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2407.76 ms. Allocated memory is still 79.7 MB. Free memory was 60.3 MB in the beginning and 58.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30269.69 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 58.2 MB in the beginning and 52.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * Witness Printer took 52.65 ms. Allocated memory is still 107.0 MB. Free memory was 52.1 MB in the beginning and 48.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2020-11-30 02:58:21,265 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,266 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,266 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,266 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (y == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-11-30 02:58:21,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,271 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,272 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,272 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 02:58:21,273 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((y == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())))) && 1bv32 == \result - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-11-30 02:58:21,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:58:21,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:58:21,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: y == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 109 SDslu, 241 SDs, 0 SdLazy, 42 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 22.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 57 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 10 QuantifiedInterpolants, 4565 SizeOfPredicates, 16 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...