./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/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 771ac18762cba65d7655f8783470382cab6df6a6 ........................................................................................................................................................................................................................................................................................................................ 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_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/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 771ac18762cba65d7655f8783470382cab6df6a6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:58:35,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:58:35,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:58:35,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:58:35,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:58:35,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:58:35,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:58:35,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:58:35,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:58:35,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:58:35,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:58:35,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:58:35,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:58:35,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:58:35,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:58:35,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:58:35,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:58:35,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:58:35,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:58:35,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:58:35,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:58:35,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:58:35,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:58:35,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:58:35,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:58:35,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:58:35,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:58:35,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:58:35,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:58:35,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:58:35,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:58:35,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:58:35,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:58:35,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:58:35,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:58:35,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:58:35,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:58:35,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:58:35,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:58:35,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:58:35,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:58:35,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:58:35,888 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:58:35,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:58:35,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:58:35,889 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:58:35,889 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:58:35,889 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:58:35,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:58:35,889 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:58:35,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:58:35,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:58:35,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:58:35,890 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:58:35,890 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:58:35,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:58:35,890 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:58:35,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:58:35,891 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:58:35,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:58:35,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:58:35,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:58:35,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:58:35,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:58:35,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:58:35,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:58:35,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:58:35,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:58:35,892 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:58:35,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:58:35,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:58:35,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:58:35,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:58:35,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:58:35,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:58:35,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:58:35,893 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:58:35,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:58:35,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:58:35,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:58:35,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:58:35,893 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_ef61d980-8d26-4343-84e8-32fd2057d358/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 771ac18762cba65d7655f8783470382cab6df6a6 [2020-12-09 10:58:36,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:58:36,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:58:36,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:58:36,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:58:36,086 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:58:36,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2020-12-09 10:58:36,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/e3b60f7c9/b5ba7dd566034e91abf585a699992afc/FLAG18db4d1d5 [2020-12-09 10:58:36,525 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:58:36,525 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2020-12-09 10:58:36,531 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/e3b60f7c9/b5ba7dd566034e91abf585a699992afc/FLAG18db4d1d5 [2020-12-09 10:58:36,540 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/e3b60f7c9/b5ba7dd566034e91abf585a699992afc [2020-12-09 10:58:36,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:58:36,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:58:36,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:58:36,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:58:36,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:58:36,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3f9ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36, skipping insertion in model container [2020-12-09 10:58:36,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:58:36,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:58:36,723 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2020-12-09 10:58:36,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:58:36,736 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:58:36,774 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2020-12-09 10:58:36,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:58:36,789 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:58:36,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36 WrapperNode [2020-12-09 10:58:36,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:58:36,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:58:36,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:58:36,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:58:36,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:58:36,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:58:36,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:58:36,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:58:36,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... [2020-12-09 10:58:36,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:58:36,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:58:36,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:58:36,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:58:36,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/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 [2020-12-09 10:58:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 10:58:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:58:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 10:58:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 10:58:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 10:58:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:58:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:58:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 10:58:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:58:37,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:58:37,289 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 10:58:37,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:58:37 BoogieIcfgContainer [2020-12-09 10:58:37,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:58:37,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:58:37,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:58:37,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:58:37,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:58:36" (1/3) ... [2020-12-09 10:58:37,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512173bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:58:37, skipping insertion in model container [2020-12-09 10:58:37,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:36" (2/3) ... [2020-12-09 10:58:37,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512173bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:58:37, skipping insertion in model container [2020-12-09 10:58:37,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:58:37" (3/3) ... [2020-12-09 10:58:37,299 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2020-12-09 10:58:37,312 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:58:37,315 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:58:37,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:58:37,345 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:58:37,346 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:58:37,346 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:58:37,346 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:58:37,346 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:58:37,346 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:58:37,346 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:58:37,346 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:58:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-09 10:58:37,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:58:37,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:58:37,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:58:37,360 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:58:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:58:37,364 INFO L82 PathProgramCache]: Analyzing trace with hash -904375748, now seen corresponding path program 1 times [2020-12-09 10:58:37,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:58:37,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80009645] [2020-12-09 10:58:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:58:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:58:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:58:37,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80009645] [2020-12-09 10:58:37,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:58:37,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:58:37,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739893432] [2020-12-09 10:58:37,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:58:37,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:58:37,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:58:37,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:58:37,524 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-09 10:58:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:58:37,542 INFO L93 Difference]: Finished difference Result 73 states and 117 transitions. [2020-12-09 10:58:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:58:37,543 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 10:58:37,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:58:37,551 INFO L225 Difference]: With dead ends: 73 [2020-12-09 10:58:37,551 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 10:58:37,553 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 [2020-12-09 10:58:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 10:58:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-09 10:58:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 10:58:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-12-09 10:58:37,582 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 9 [2020-12-09 10:58:37,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:58:37,582 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-12-09 10:58:37,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:58:37,583 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-12-09 10:58:37,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 10:58:37,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:58:37,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:58:37,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:58:37,584 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:58:37,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:58:37,585 INFO L82 PathProgramCache]: Analyzing trace with hash 967314873, now seen corresponding path program 1 times [2020-12-09 10:58:37,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:58:37,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475600266] [2020-12-09 10:58:37,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:58:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:58:37,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:58:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:58:37,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:58:37,700 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 10:58:37,700 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 10:58:37,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 10:58:37,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:58:37 BoogieIcfgContainer [2020-12-09 10:58:37,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:58:37,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:58:37,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:58:37,734 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:58:37,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:58:37" (3/4) ... [2020-12-09 10:58:37,738 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 10:58:37,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:58:37,740 INFO L168 Benchmark]: Toolchain (without parser) took 1195.10 ms. Allocated memory is still 90.2 MB. Free memory was 51.2 MB in the beginning and 50.4 MB in the end (delta: 781.5 kB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:58:37,740 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:58:37,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.72 ms. Allocated memory is still 90.2 MB. Free memory was 51.0 MB in the beginning and 60.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:58:37,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.88 ms. Allocated memory is still 90.2 MB. Free memory was 60.1 MB in the beginning and 57.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:58:37,742 INFO L168 Benchmark]: Boogie Preprocessor took 25.28 ms. Allocated memory is still 90.2 MB. Free memory was 57.7 MB in the beginning and 55.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:58:37,743 INFO L168 Benchmark]: RCFGBuilder took 441.35 ms. Allocated memory is still 90.2 MB. Free memory was 55.9 MB in the beginning and 40.1 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-12-09 10:58:37,743 INFO L168 Benchmark]: TraceAbstraction took 440.66 ms. Allocated memory is still 90.2 MB. Free memory was 40.1 MB in the beginning and 50.4 MB in the end (delta: -10.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:58:37,744 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 90.2 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:58:37,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.72 ms. Allocated memory is still 90.2 MB. Free memory was 51.0 MB in the beginning and 60.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.88 ms. Allocated memory is still 90.2 MB. Free memory was 60.1 MB in the beginning and 57.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.28 ms. Allocated memory is still 90.2 MB. Free memory was 57.7 MB in the beginning and 55.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 441.35 ms. Allocated memory is still 90.2 MB. Free memory was 55.9 MB in the beginning and 40.1 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 440.66 ms. Allocated memory is still 90.2 MB. Free memory was 40.1 MB in the beginning and 50.4 MB in the end (delta: -10.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.93 ms. Allocated memory is still 90.2 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 169]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 154. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L164] float x = 0.0f; [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L165] float res = __ieee754_log10f(x); [L148] __int32_t ix; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L150] ieee_float_shape_type gf_u; [L151] gf_u.value = (x) [L152] EXPR gf_u.word [L152] (ix) = gf_u.word [L154] ix &= 0x7fffffff [L155] return ((ix) == 0x7f800000L); [L168] COND TRUE !isinf_float(res) [L169] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 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=37occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 0.2.0-7b2dab5 [2020-12-09 10:58:39,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:58:39,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:58:39,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:58:39,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:58:39,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:58:39,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:58:39,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:58:39,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:58:39,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:58:39,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:58:39,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:58:39,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:58:39,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:58:39,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:58:39,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:58:39,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:58:39,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:58:39,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:58:39,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:58:39,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:58:39,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:58:39,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:58:39,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:58:39,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:58:39,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:58:39,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:58:39,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:58:39,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:58:39,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:58:39,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:58:39,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:58:39,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:58:39,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:58:39,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:58:39,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:58:39,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:58:39,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:58:39,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:58:39,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:58:39,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:58:39,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 10:58:39,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:58:39,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:58:39,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:58:39,409 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:58:39,409 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:58:39,410 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:58:39,410 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:58:39,410 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:58:39,410 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:58:39,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:58:39,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:58:39,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:58:39,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:58:39,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:58:39,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:58:39,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:58:39,412 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:58:39,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:58:39,413 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:58:39,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:58:39,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:58:39,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:58:39,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:58:39,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:58:39,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:58:39,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:58:39,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:58:39,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:58:39,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:58:39,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:58:39,415 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:58:39,415 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:58:39,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:58:39,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:58:39,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:58:39,416 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_ef61d980-8d26-4343-84e8-32fd2057d358/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 771ac18762cba65d7655f8783470382cab6df6a6 [2020-12-09 10:58:39,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:58:39,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:58:39,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:58:39,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:58:39,674 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:58:39,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2020-12-09 10:58:39,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/4ca03e0fc/a4f6178058cf4194bdd22082e047dec4/FLAG95692d525 [2020-12-09 10:58:40,194 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:58:40,194 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2020-12-09 10:58:40,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/4ca03e0fc/a4f6178058cf4194bdd22082e047dec4/FLAG95692d525 [2020-12-09 10:58:40,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/data/4ca03e0fc/a4f6178058cf4194bdd22082e047dec4 [2020-12-09 10:58:40,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:58:40,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:58:40,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:58:40,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:58:40,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:58:40,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2822ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40, skipping insertion in model container [2020-12-09 10:58:40,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:58:40,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:58:40,386 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2020-12-09 10:58:40,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:58:40,415 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:58:40,457 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2020-12-09 10:58:40,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:58:40,476 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:58:40,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40 WrapperNode [2020-12-09 10:58:40,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:58:40,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:58:40,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:58:40,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:58:40,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:58:40,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:58:40,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:58:40,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:58:40,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... [2020-12-09 10:58:40,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:58:40,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:58:40,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:58:40,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:58:40,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/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 [2020-12-09 10:58:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 10:58:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:58:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 10:58:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 10:58:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:58:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:58:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 10:58:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 10:58:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:59:07,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:59:07,758 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 10:59:07,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:59:07 BoogieIcfgContainer [2020-12-09 10:59:07,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:59:07,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:59:07,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:59:07,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:59:07,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:58:40" (1/3) ... [2020-12-09 10:59:07,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a07427a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:59:07, skipping insertion in model container [2020-12-09 10:59:07,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:58:40" (2/3) ... [2020-12-09 10:59:07,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a07427a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:59:07, skipping insertion in model container [2020-12-09 10:59:07,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:59:07" (3/3) ... [2020-12-09 10:59:07,764 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2020-12-09 10:59:07,773 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:59:07,776 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:59:07,783 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:59:07,799 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:59:07,800 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:59:07,800 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:59:07,800 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:59:07,800 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:59:07,800 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:59:07,800 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:59:07,800 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:59:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-12-09 10:59:07,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 10:59:07,812 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:59:07,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:59:07,813 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:59:07,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:59:07,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2020-12-09 10:59:07,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:59:07,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823027867] [2020-12-09 10:59:07,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/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 [2020-12-09 10:59:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:59:08,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 10:59:08,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:59:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:59:08,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:59:08,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823027867] [2020-12-09 10:59:08,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:59:08,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:59:08,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944174748] [2020-12-09 10:59:08,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:59:08,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:59:08,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:59:08,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:59:08,397 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-12-09 10:59:08,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:59:08,411 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2020-12-09 10:59:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:59:08,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-09 10:59:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:59:08,418 INFO L225 Difference]: With dead ends: 92 [2020-12-09 10:59:08,418 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 10:59:08,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:59:08,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 10:59:08,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-09 10:59:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 10:59:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2020-12-09 10:59:08,443 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2020-12-09 10:59:08,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:59:08,444 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2020-12-09 10:59:08,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:59:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2020-12-09 10:59:08,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 10:59:08,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:59:08,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:59:08,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:59:08,646 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:59:08,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:59:08,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2020-12-09 10:59:08,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:59:08,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491685668] [2020-12-09 10:59:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/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 [2020-12-09 10:59:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:59:09,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 10:59:09,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:59:09,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:59:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:59:09,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:59:09,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491685668] [2020-12-09 10:59:09,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:59:09,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 10:59:09,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448582838] [2020-12-09 10:59:09,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 10:59:09,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:59:09,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 10:59:09,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:59:09,787 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 8 states. [2020-12-09 10:59:11,484 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 10:59:12,112 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 10:59:12,740 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 10:59:41,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:59:41,572 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-12-09 10:59:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 10:59:41,605 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-09 10:59:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:59:41,607 INFO L225 Difference]: With dead ends: 61 [2020-12-09 10:59:41,607 INFO L226 Difference]: Without dead ends: 53 [2020-12-09 10:59:41,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-09 10:59:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-09 10:59:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2020-12-09 10:59:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 10:59:41,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2020-12-09 10:59:41,614 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 13 [2020-12-09 10:59:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:59:41,617 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2020-12-09 10:59:41,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 10:59:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2020-12-09 10:59:41,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 10:59:41,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:59:41,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:59:41,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:59:41,819 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:59:41,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:59:41,822 INFO L82 PathProgramCache]: Analyzing trace with hash -657075683, now seen corresponding path program 1 times [2020-12-09 10:59:41,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:59:41,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171140303] [2020-12-09 10:59:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/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 [2020-12-09 10:59:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:59:42,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 10:59:42,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:59:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:59:42,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:59:42,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171140303] [2020-12-09 10:59:42,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:59:42,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:59:42,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040806844] [2020-12-09 10:59:42,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 10:59:42,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:59:42,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 10:59:42,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 10:59:42,497 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 4 states. [2020-12-09 10:59:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:59:42,555 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2020-12-09 10:59:42,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 10:59:42,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 10:59:42,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:59:42,555 INFO L225 Difference]: With dead ends: 44 [2020-12-09 10:59:42,555 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:59:42,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:59:42,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:59:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:59:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:59:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:59:42,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-09 10:59:42,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:59:42,557 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:59:42,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 10:59:42,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:59:42,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:59:42,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 10:59:42,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 10:59:43,019 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 10:59:43,222 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 10:59:43,224 INFO L262 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-12-09 10:59:43,224 INFO L262 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-12-09 10:59:43,224 INFO L262 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-12-09 10:59:43,224 INFO L262 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-12-09 10:59:43,225 INFO L258 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 10:59:43,225 INFO L262 CegarLoopResult]: For program point L168(lines 168 171) no Hoare annotation was computed. [2020-12-09 10:59:43,225 INFO L262 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-12-09 10:59:43,225 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 10:59:43,225 INFO L258 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-12-09 10:59:43,225 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 10:59:43,225 INFO L262 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-12-09 10:59:43,225 INFO L258 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (= ULTIMATE.start___ieee754_log10f_~x (_ +zero 8 24)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-12-09 10:59:43,226 INFO L258 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-12-09 10:59:43,226 INFO L258 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-12-09 10:59:43,226 INFO L262 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-12-09 10:59:43,227 INFO L262 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-12-09 10:59:43,227 INFO L258 CegarLoopResult]: At program point L155(lines 147 156) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) ULTIMATE.start_isinf_float_~x)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 10:59:43,227 INFO L262 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-12-09 10:59:43,227 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 10:59:43,227 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-12-09 10:59:43,227 INFO L265 CegarLoopResult]: At program point L173(lines 158 174) the Hoare annotation is: true [2020-12-09 10:59:43,227 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-12-09 10:59:43,227 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 10:59:43,227 INFO L262 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L262 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L262 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L262 CegarLoopResult]: For program point L149-1(lines 149 153) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L258 CegarLoopResult]: At program point L149-2(lines 149 153) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) ULTIMATE.start_isinf_float_~x)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 10:59:43,228 INFO L262 CegarLoopResult]: For program point L149-3(lines 149 153) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L262 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L258 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-12-09 10:59:43,228 INFO L262 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L262 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-12-09 10:59:43,228 INFO L258 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-12-09 10:59:43,229 INFO L262 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-12-09 10:59:43,229 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-12-09 10:59:43,229 INFO L258 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-12-09 10:59:43,229 INFO L262 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-12-09 10:59:43,229 INFO L262 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-12-09 10:59:43,229 INFO L262 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-12-09 10:59:43,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,240 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,246 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,247 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:59:43 BoogieIcfgContainer [2020-12-09 10:59:43,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:59:43,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:59:43,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:59:43,255 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:59:43,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:59:07" (3/4) ... [2020-12-09 10:59:43,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:59:43,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-09 10:59:43,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-09 10:59:43,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:59:43,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:59:43,284 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 10:59:43,284 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 10:59:43,285 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 10:59:43,313 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ef61d980-8d26-4343-84e8-32fd2057d358/bin/utaipan/witness.graphml [2020-12-09 10:59:43,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:59:43,314 INFO L168 Benchmark]: Toolchain (without parser) took 63099.55 ms. Allocated memory was 50.3 MB in the beginning and 83.9 MB in the end (delta: 33.6 MB). Free memory was 27.9 MB in the beginning and 59.8 MB in the end (delta: -32.0 MB). Peak memory consumption was 195.3 kB. Max. memory is 16.1 GB. [2020-12-09 10:59:43,314 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:59:43,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.38 ms. Allocated memory was 50.3 MB in the beginning and 83.9 MB in the end (delta: 33.6 MB). Free memory was 27.7 MB in the beginning and 64.6 MB in the end (delta: -36.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:59:43,315 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 83.9 MB. Free memory was 64.6 MB in the beginning and 62.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:59:43,315 INFO L168 Benchmark]: Boogie Preprocessor took 43.25 ms. Allocated memory is still 83.9 MB. Free memory was 62.2 MB in the beginning and 60.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:59:43,315 INFO L168 Benchmark]: RCFGBuilder took 27188.70 ms. Allocated memory is still 83.9 MB. Free memory was 60.1 MB in the beginning and 53.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:59:43,316 INFO L168 Benchmark]: TraceAbstraction took 35494.53 ms. Allocated memory is still 83.9 MB. Free memory was 53.1 MB in the beginning and 65.5 MB in the end (delta: -12.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:59:43,316 INFO L168 Benchmark]: Witness Printer took 57.78 ms. Allocated memory is still 83.9 MB. Free memory was 65.5 MB in the beginning and 59.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:59:43,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.38 ms. Allocated memory was 50.3 MB in the beginning and 83.9 MB in the end (delta: 33.6 MB). Free memory was 27.7 MB in the beginning and 64.6 MB in the end (delta: -36.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 83.9 MB. Free memory was 64.6 MB in the beginning and 62.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.25 ms. Allocated memory is still 83.9 MB. Free memory was 62.2 MB in the beginning and 60.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 27188.70 ms. Allocated memory is still 83.9 MB. Free memory was 60.1 MB in the beginning and 53.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35494.53 ms. Allocated memory is still 83.9 MB. Free memory was 53.1 MB in the beginning and 65.5 MB in the end (delta: -12.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * Witness Printer took 57.78 ms. Allocated memory is still 83.9 MB. Free memory was 65.5 MB in the beginning and 59.8 MB in the end (delta: 5.7 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 107]: Loop Invariant [2020-12-09 10:59:43,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-12-09 10:59:43,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10 && x == ~Pluszero~LONGDOUBLE()) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 149]: Loop Invariant [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:59:43,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 54 SDslu, 216 SDs, 0 SdLazy, 73 SolverSat, 3 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 30.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 137 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 4 QuantifiedInterpolants, 2311 SizeOfPredicates, 15 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...