./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs --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 ad220425e59782d2842875bc5488a6e9ea4ef5ae ................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs --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 ad220425e59782d2842875bc5488a6e9ea4ef5ae .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:57:57,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:57:57,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:57:57,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:57:57,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:57:57,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:57:57,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:57:57,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:57:57,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:57:57,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:57:57,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:57:57,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:57:57,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:57:57,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:57:57,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:57:57,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:57:57,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:57:57,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:57:57,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:57:57,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:57:57,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:57:57,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:57:57,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:57:57,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:57:57,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:57:57,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:57:57,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:57:58,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:57:58,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:57:58,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:57:58,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:57:58,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:57:58,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:57:58,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:57:58,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:57:58,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:57:58,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:57:58,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:57:58,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:57:58,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:57:58,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:57:58,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:57:58,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:57:58,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:57:58,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:57:58,063 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:57:58,064 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:57:58,064 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:57:58,064 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:57:58,064 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:57:58,065 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:57:58,065 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:57:58,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:57:58,066 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:57:58,066 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:57:58,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:57:58,067 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:57:58,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:57:58,068 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:57:58,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:57:58,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:57:58,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:57:58,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:57:58,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:57:58,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:57:58,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:57:58,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:57:58,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:57:58,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:57:58,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:57:58,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:57:58,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:57:58,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:57:58,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:57:58,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:57:58,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:57:58,074 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:57:58,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:57:58,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:57:58,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:57:58,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:57:58,075 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_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2021-10-16 02:57:58,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:57:58,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:57:58,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:57:58,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:57:58,366 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:57:58,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-16 02:57:58,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/56d73f095/8c839a1360f546baba63106cafc7033c/FLAGad5ca35e2 [2021-10-16 02:57:58,986 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:57:58,988 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-16 02:57:59,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/56d73f095/8c839a1360f546baba63106cafc7033c/FLAGad5ca35e2 [2021-10-16 02:57:59,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/56d73f095/8c839a1360f546baba63106cafc7033c [2021-10-16 02:57:59,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:57:59,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:57:59,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:57:59,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:57:59,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:57:59,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f50ae14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59, skipping insertion in model container [2021-10-16 02:57:59,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:57:59,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:57:59,665 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-16 02:57:59,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:57:59,694 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:57:59,727 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-16 02:57:59,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:57:59,747 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:57:59,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59 WrapperNode [2021-10-16 02:57:59,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:57:59,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:57:59,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:57:59,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:57:59,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:57:59,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:57:59,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:57:59,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:57:59,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:57:59,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:57:59,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:57:59,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:57:59,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (1/1) ... [2021-10-16 02:57:59,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:57:59,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:57:59,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:57:59,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:57:59,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:57:59,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:57:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:57:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:58:00,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:58:00,231 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 02:58:00,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:00 BoogieIcfgContainer [2021-10-16 02:58:00,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:58:00,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:58:00,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:58:00,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:58:00,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:57:59" (1/3) ... [2021-10-16 02:58:00,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8fd950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:00, skipping insertion in model container [2021-10-16 02:58:00,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:57:59" (2/3) ... [2021-10-16 02:58:00,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8fd950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:00, skipping insertion in model container [2021-10-16 02:58:00,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:00" (3/3) ... [2021-10-16 02:58:00,245 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2021-10-16 02:58:00,252 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:58:00,252 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:58:00,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:58:00,313 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:58:00,327 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:58:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:00,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:58:00,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:58:00,365 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:58:00,366 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:58:00,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:58:00,373 INFO L82 PathProgramCache]: Analyzing trace with hash 44367, now seen corresponding path program 1 times [2021-10-16 02:58:00,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:58:00,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853368380] [2021-10-16 02:58:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:00,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:58:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:58:00,495 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:58:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:58:00,538 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:58:00,545 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:58:00,547 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:58:00,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:58:00,560 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:58:00,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:58:00 BoogieIcfgContainer [2021-10-16 02:58:00,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:58:00,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:58:00,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:58:00,588 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:58:00,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:00" (3/4) ... [2021-10-16 02:58:00,593 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:58:00,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:58:00,598 INFO L168 Benchmark]: Toolchain (without parser) took 1234.42 ms. Allocated memory is still 104.9 MB. Free memory was 66.8 MB in the beginning and 52.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:00,600 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory was 82.9 MB in the beginning and 82.8 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:00,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.31 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 78.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:00,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.07 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 77.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:00,604 INFO L168 Benchmark]: Boogie Preprocessor took 33.91 ms. Allocated memory is still 104.9 MB. Free memory was 77.0 MB in the beginning and 76.5 MB in the end (delta: 542.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:00,605 INFO L168 Benchmark]: RCFGBuilder took 407.22 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 66.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:00,611 INFO L168 Benchmark]: TraceAbstraction took 346.29 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 53.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:00,613 INFO L168 Benchmark]: Witness Printer took 5.60 ms. Allocated memory is still 104.9 MB. Free memory was 53.4 MB in the beginning and 52.9 MB in the end (delta: 515.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:00,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory was 82.9 MB in the beginning and 82.8 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.31 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 78.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.07 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 77.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.91 ms. Allocated memory is still 104.9 MB. Free memory was 77.0 MB in the beginning and 76.5 MB in the end (delta: 542.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 407.22 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 66.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 346.29 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 53.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.60 ms. Allocated memory is still 104.9 MB. Free memory was 53.4 MB in the beginning and 52.9 MB in the end (delta: 515.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 251.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 27.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.2ms SsaConstructionTime, 36.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-10-16 02:58:00,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:58:03,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:58:03,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:58:03,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:58:03,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:58:03,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:58:03,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:58:03,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:58:03,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:58:03,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:58:03,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:58:03,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:58:03,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:58:03,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:58:03,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:58:03,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:58:03,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:58:03,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:58:03,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:58:03,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:58:03,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:58:03,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:58:03,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:58:03,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:58:03,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:58:03,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:58:03,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:58:03,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:58:03,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:58:03,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:58:03,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:58:03,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:58:03,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:58:03,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:58:03,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:58:03,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:58:03,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:58:03,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:58:03,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:58:03,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:58:03,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:58:03,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:58:03,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:58:03,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:58:03,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:58:03,486 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:58:03,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:58:03,486 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:58:03,486 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:58:03,487 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:58:03,487 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:58:03,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:58:03,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:58:03,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:58:03,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:58:03,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:58:03,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:58:03,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:58:03,491 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:58:03,492 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:58:03,492 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:58:03,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:58:03,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:58:03,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:58:03,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:58:03,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:58:03,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:58:03,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:58:03,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:58:03,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:58:03,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:58:03,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:58:03,495 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:58:03,495 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:58:03,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:58:03,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:58:03,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:58:03,496 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_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2021-10-16 02:58:03,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:58:03,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:58:03,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:58:03,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:58:03,994 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:58:03,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-16 02:58:04,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/fae1f5849/039850b84ed74f06948bbaa04b65595e/FLAG27971e4fa [2021-10-16 02:58:04,665 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:58:04,666 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2021-10-16 02:58:04,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/fae1f5849/039850b84ed74f06948bbaa04b65595e/FLAG27971e4fa [2021-10-16 02:58:05,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/data/fae1f5849/039850b84ed74f06948bbaa04b65595e [2021-10-16 02:58:05,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:58:05,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:58:05,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:58:05,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:58:05,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:58:05,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380da51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05, skipping insertion in model container [2021-10-16 02:58:05,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:58:05,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:58:05,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-16 02:58:05,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:58:05,321 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:58:05,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2021-10-16 02:58:05,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:58:05,371 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:58:05,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05 WrapperNode [2021-10-16 02:58:05,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:58:05,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:58:05,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:58:05,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:58:05,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:58:05,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:58:05,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:58:05,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:58:05,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:58:05,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:58:05,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:58:05,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:58:05,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (1/1) ... [2021-10-16 02:58:05,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:58:05,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:58:05,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:58:05,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:58:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:58:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:58:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:58:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:58:06,040 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:58:06,041 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 02:58:06,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:06 BoogieIcfgContainer [2021-10-16 02:58:06,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:58:06,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:58:06,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:58:06,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:58:06,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:58:05" (1/3) ... [2021-10-16 02:58:06,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25bfac89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:06, skipping insertion in model container [2021-10-16 02:58:06,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:05" (2/3) ... [2021-10-16 02:58:06,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25bfac89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:06, skipping insertion in model container [2021-10-16 02:58:06,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:06" (3/3) ... [2021-10-16 02:58:06,064 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2021-10-16 02:58:06,071 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:58:06,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:58:06,145 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:58:06,157 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:58:06,157 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:58:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:58:06,182 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:58:06,182 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:58:06,183 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:58:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:58:06,190 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-16 02:58:06,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:58:06,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330281748] [2021-10-16 02:58:06,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:06,206 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:58:06,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:58:06,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:58:06,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:58:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:06,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:58:06,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:58:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:06,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:58:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:06,811 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:58:06,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330281748] [2021-10-16 02:58:06,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330281748] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:58:06,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:58:06,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-16 02:58:06,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373168327] [2021-10-16 02:58:06,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:58:06,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:58:06,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:58:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:58:06,845 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:07,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:58:07,079 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-16 02:58:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:58:07,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-16 02:58:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:58:07,090 INFO L225 Difference]: With dead ends: 13 [2021-10-16 02:58:07,090 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:58:07,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 135.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:58:07,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:58:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:58:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:58:07,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-16 02:58:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:58:07,119 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:58:07,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:58:07,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:58:07,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:58:07,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:58:07,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:58:07,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:58:07,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:58:07,397 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:58:07,397 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:58:07,398 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:58:07,398 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:58:07,398 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-16 02:58:07,399 INFO L853 garLoopResultBuilder]: At program point L14(lines 5 15) the Hoare annotation is: (and (= (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))) ULTIMATE.start_main_~target~0) (= ULTIMATE.start_main_~result~0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-16 02:58:07,399 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-16 02:58:07,399 INFO L857 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-10-16 02:58:07,400 INFO L857 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-10-16 02:58:07,405 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:58:07,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,420 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,421 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,421 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,421 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,422 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:58:07 BoogieIcfgContainer [2021-10-16 02:58:07,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:58:07,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:58:07,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:58:07,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:58:07,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:06" (3/4) ... [2021-10-16 02:58:07,429 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:58:07,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-16 02:58:07,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-16 02:58:07,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-16 02:58:07,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:58:07,475 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:58:07,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:58:07,484 INFO L168 Benchmark]: Toolchain (without parser) took 2422.77 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 40.0 MB in the beginning and 42.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:07,485 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:07,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.29 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 29.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:07,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.79 ms. Allocated memory is still 60.8 MB. Free memory was 29.2 MB in the beginning and 27.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:07,490 INFO L168 Benchmark]: Boogie Preprocessor took 32.97 ms. Allocated memory is still 60.8 MB. Free memory was 27.9 MB in the beginning and 26.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:07,491 INFO L168 Benchmark]: RCFGBuilder took 599.90 ms. Allocated memory is still 60.8 MB. Free memory was 26.8 MB in the beginning and 37.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:07,493 INFO L168 Benchmark]: TraceAbstraction took 1374.18 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 36.9 MB in the beginning and 44.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:07,493 INFO L168 Benchmark]: Witness Printer took 52.60 ms. Allocated memory is still 75.5 MB. Free memory was 44.9 MB in the beginning and 42.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:07,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 316.29 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 29.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.79 ms. Allocated memory is still 60.8 MB. Free memory was 29.2 MB in the beginning and 27.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.97 ms. Allocated memory is still 60.8 MB. Free memory was 27.9 MB in the beginning and 26.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 599.90 ms. Allocated memory is still 60.8 MB. Free memory was 26.8 MB in the beginning and 37.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1374.18 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 36.9 MB in the beginning and 44.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Witness Printer took 52.60 ms. Allocated memory is still 75.5 MB. Free memory was 44.9 MB in the beginning and 42.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1261.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.0ms, AutomataDifference: 270.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 50.8ms, InitialAbstractionConstructionTime: 13.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 180.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 135.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 31.5ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 13.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 13.5ms SsaConstructionTime, 203.8ms SatisfiabilityAnalysisTime, 333.3ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 5 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant [2021-10-16 02:58:07,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:58:07,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) == target && result == ~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-10-16 02:58:07,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c610a845-6b81-4527-aa52-fcdf5bbee8c9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...