./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.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_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/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_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/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_88910d23-8e1b-404e-92e1-460afd48ce2e/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 bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 ............................................................................................................................................................................................................................................................................................................. 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_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/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_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/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_88910d23-8e1b-404e-92e1-460afd48ce2e/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 bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:05:34,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:05:34,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:05:34,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:05:34,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:05:34,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:05:34,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:05:34,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:05:34,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:05:34,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:05:34,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:05:34,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:05:34,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:05:34,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:05:35,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:05:35,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:05:35,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:05:35,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:05:35,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:05:35,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:05:35,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:05:35,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:05:35,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:05:35,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:05:35,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:05:35,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:05:35,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:05:35,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:05:35,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:05:35,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:05:35,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:05:35,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:05:35,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:05:35,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:05:35,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:05:35,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:05:35,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:05:35,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:05:35,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:05:35,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:05:35,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:05:35,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:05:35,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:05:35,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:05:35,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:05:35,114 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:05:35,114 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:05:35,115 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:05:35,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:05:35,115 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:05:35,116 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:05:35,116 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:05:35,117 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:05:35,117 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:05:35,118 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:05:35,118 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:05:35,118 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:05:35,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:05:35,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:05:35,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:05:35,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:05:35,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:05:35,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:05:35,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:05:35,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:05:35,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:05:35,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:05:35,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:05:35,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:05:35,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:05:35,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:05:35,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:05:35,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:35,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:05:35,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:05:35,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:05:35,126 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:05:35,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:05:35,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:05:35,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:05:35,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:05:35,128 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_88910d23-8e1b-404e-92e1-460afd48ce2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 [2021-10-16 03:05:35,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:05:35,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:05:35,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:05:35,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:05:35,482 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:05:35,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-16 03:05:35,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/6455da249/43c7b64ca0414377ba6812157dada7e0/FLAG53783d531 [2021-10-16 03:05:36,165 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:05:36,166 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-16 03:05:36,175 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/6455da249/43c7b64ca0414377ba6812157dada7e0/FLAG53783d531 [2021-10-16 03:05:36,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/6455da249/43c7b64ca0414377ba6812157dada7e0 [2021-10-16 03:05:36,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:05:36,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:05:36,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:36,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:05:36,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:05:36,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f87303b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36, skipping insertion in model container [2021-10-16 03:05:36,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:05:36,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:05:36,806 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_88910d23-8e1b-404e-92e1-460afd48ce2e/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-16 03:05:36,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:36,824 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:05:36,891 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_88910d23-8e1b-404e-92e1-460afd48ce2e/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-16 03:05:36,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:36,911 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:05:36,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36 WrapperNode [2021-10-16 03:05:36,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:36,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:36,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:05:36,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:05:36,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:36,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:05:36,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:05:36,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:05:36,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:37,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:37,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:37,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:37,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:05:37,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:05:37,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:05:37,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:05:37,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:37,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:37,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:37,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:05:37,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:05:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:05:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:05:37,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 03:05:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 03:05:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 03:05:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:05:37,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:05:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 03:05:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:05:38,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:05:38,273 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-16 03:05:38,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:38 BoogieIcfgContainer [2021-10-16 03:05:38,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:05:38,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:05:38,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:05:38,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:05:38,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:05:36" (1/3) ... [2021-10-16 03:05:38,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768a3b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:05:38, skipping insertion in model container [2021-10-16 03:05:38,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36" (2/3) ... [2021-10-16 03:05:38,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768a3b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:05:38, skipping insertion in model container [2021-10-16 03:05:38,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:38" (3/3) ... [2021-10-16 03:05:38,294 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2021-10-16 03:05:38,301 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:05:38,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:05:38,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:05:38,422 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 03:05:38,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:05:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 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 03:05:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:05:38,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:38,488 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 03:05:38,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:05:38,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:38,496 INFO L82 PathProgramCache]: Analyzing trace with hash -2049779649, now seen corresponding path program 1 times [2021-10-16 03:05:38,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:05:38,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147152785] [2021-10-16 03:05:38,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:38,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:05:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:38,685 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 03:05:38,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:05:38,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147152785] [2021-10-16 03:05:38,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147152785] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:05:38,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:05:38,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:05:38,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679015190] [2021-10-16 03:05:38,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:05:38,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:05:38,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:05:38,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:05:38,717 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 03:05:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:05:38,736 INFO L93 Difference]: Finished difference Result 45 states and 71 transitions. [2021-10-16 03:05:38,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:05:38,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2021-10-16 03:05:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:05:38,748 INFO L225 Difference]: With dead ends: 45 [2021-10-16 03:05:38,749 INFO L226 Difference]: Without dead ends: 21 [2021-10-16 03:05:38,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:05:38,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-16 03:05:38,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-16 03:05:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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 03:05:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-10-16 03:05:38,789 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 6 [2021-10-16 03:05:38,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:05:38,790 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-10-16 03:05:38,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 03:05:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-10-16 03:05:38,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 03:05:38,791 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:38,792 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:05:38,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:05:38,793 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:05:38,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:38,794 INFO L82 PathProgramCache]: Analyzing trace with hash 669089214, now seen corresponding path program 1 times [2021-10-16 03:05:38,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:05:38,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136057993] [2021-10-16 03:05:38,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:38,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:05:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:05:38,843 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:05:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:05:38,900 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 03:05:38,904 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:05:38,906 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:05:38,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:05:38,917 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:05:38,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:05:38 BoogieIcfgContainer [2021-10-16 03:05:38,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:05:38,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:05:38,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:05:38,958 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:05:38,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:38" (3/4) ... [2021-10-16 03:05:38,965 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 03:05:38,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:05:38,969 INFO L168 Benchmark]: Toolchain (without parser) took 2463.75 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 73.4 MB in the beginning and 95.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:38,970 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 113.2 MB. Free memory was 89.8 MB in the beginning and 89.6 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:05:38,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.16 ms. Allocated memory is still 113.2 MB. Free memory was 73.2 MB in the beginning and 84.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:38,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.14 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:38,975 INFO L168 Benchmark]: Boogie Preprocessor took 48.61 ms. Allocated memory is still 113.2 MB. Free memory was 82.8 MB in the beginning and 81.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:38,979 INFO L168 Benchmark]: RCFGBuilder took 1245.40 ms. Allocated memory is still 113.2 MB. Free memory was 80.7 MB in the beginning and 48.1 MB in the end (delta: 32.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:38,981 INFO L168 Benchmark]: TraceAbstraction took 677.66 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 47.6 MB in the beginning and 95.1 MB in the end (delta: -47.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:05:38,982 INFO L168 Benchmark]: Witness Printer took 9.15 ms. Allocated memory is still 140.5 MB. Free memory is still 95.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:05:38,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 113.2 MB. Free memory was 89.8 MB in the beginning and 89.6 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 394.16 ms. Allocated memory is still 113.2 MB. Free memory was 73.2 MB in the beginning and 84.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.14 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.61 ms. Allocated memory is still 113.2 MB. Free memory was 82.8 MB in the beginning and 81.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1245.40 ms. Allocated memory is still 113.2 MB. Free memory was 80.7 MB in the beginning and 48.1 MB in the end (delta: 32.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 677.66 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 47.6 MB in the beginning and 95.1 MB in the end (delta: -47.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 9.15 ms. Allocated memory is still 140.5 MB. Free memory is still 95.1 MB. 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: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of bitwiseAnd at line 37. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L141] double x = 0.0 / 0.0; [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (x) [L33] EXPR ew_u.parts.msw [L33] (ix0) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ix1) = ew_u.parts.lsw [L37] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L38] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_sqrt(x); [L20] return x != x; [L146] COND TRUE !isnan_double(res) [L147] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 509.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 30.1ms, AutomataDifference: 54.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 34.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.2ms SsaConstructionTime, 71.6ms SatisfiabilityAnalysisTime, 57.3ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2021-10-16 03:05:39,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/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 03:05:41,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:05:41,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:05:42,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:05:42,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:05:42,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:05:42,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:05:42,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:05:42,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:05:42,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:05:42,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:05:42,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:05:42,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:05:42,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:05:42,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:05:42,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:05:42,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:05:42,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:05:42,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:05:42,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:05:42,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:05:42,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:05:42,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:05:42,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:05:42,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:05:42,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:05:42,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:05:42,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:05:42,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:05:42,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:05:42,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:05:42,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:05:42,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:05:42,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:05:42,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:05:42,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:05:42,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:05:42,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:05:42,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:05:42,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:05:42,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:05:42,169 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:05:42,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:05:42,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:05:42,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:05:42,231 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:05:42,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:05:42,232 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:05:42,232 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:05:42,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:05:42,232 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:05:42,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:05:42,236 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:05:42,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:05:42,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:05:42,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:05:42,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:05:42,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:05:42,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:05:42,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:05:42,238 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:05:42,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:05:42,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:05:42,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:05:42,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:05:42,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:05:42,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:05:42,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:05:42,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:42,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:05:42,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:05:42,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:05:42,242 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:05:42,242 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:05:42,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:05:42,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:05:42,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:05:42,244 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_88910d23-8e1b-404e-92e1-460afd48ce2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 [2021-10-16 03:05:42,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:05:42,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:05:42,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:05:42,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:05:42,775 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:05:42,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-16 03:05:42,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/f957560a7/c41f3d7c971545edb3f3f0ee63ce0dd6/FLAG0ec7c239e [2021-10-16 03:05:43,590 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:05:43,592 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-16 03:05:43,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/f957560a7/c41f3d7c971545edb3f3f0ee63ce0dd6/FLAG0ec7c239e [2021-10-16 03:05:43,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/data/f957560a7/c41f3d7c971545edb3f3f0ee63ce0dd6 [2021-10-16 03:05:43,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:05:43,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:05:43,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:43,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:05:43,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:05:43,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:43" (1/1) ... [2021-10-16 03:05:43,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94c5fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:43, skipping insertion in model container [2021-10-16 03:05:43,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:43" (1/1) ... [2021-10-16 03:05:43,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:05:43,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:05:44,222 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_88910d23-8e1b-404e-92e1-460afd48ce2e/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-16 03:05:44,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:44,270 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:05:44,348 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_88910d23-8e1b-404e-92e1-460afd48ce2e/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-16 03:05:44,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:44,370 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:05:44,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44 WrapperNode [2021-10-16 03:05:44,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:44,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:44,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:05:44,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:05:44,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:44,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:05:44,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:05:44,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:05:44,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:05:44,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:05:44,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:05:44,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:05:44,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (1/1) ... [2021-10-16 03:05:44,495 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:44,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:44,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:05:44,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:05:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-16 03:05:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-16 03:05:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:05:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:05:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 03:05:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:05:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:05:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 03:05:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:05:48,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:05:48,467 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-16 03:05:48,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:48 BoogieIcfgContainer [2021-10-16 03:05:48,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:05:48,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:05:48,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:05:48,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:05:48,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:05:43" (1/3) ... [2021-10-16 03:05:48,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf0a575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:05:48, skipping insertion in model container [2021-10-16 03:05:48,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:44" (2/3) ... [2021-10-16 03:05:48,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf0a575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:05:48, skipping insertion in model container [2021-10-16 03:05:48,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:48" (3/3) ... [2021-10-16 03:05:48,481 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2021-10-16 03:05:48,488 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:05:48,488 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:05:48,548 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:05:48,556 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 03:05:48,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:05:48,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 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 03:05:48,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 03:05:48,581 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:48,582 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:05:48,583 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:05:48,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:48,589 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2021-10-16 03:05:48,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:05:48,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110079683] [2021-10-16 03:05:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:48,606 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:05:48,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:05:48,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:05:48,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:05:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:49,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 03:05:49,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:05:49,199 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 03:05:49,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:05:49,273 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 03:05:49,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:05:49,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110079683] [2021-10-16 03:05:49,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110079683] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:05:49,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:05:49,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 03:05:49,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93324509] [2021-10-16 03:05:49,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:05:49,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:05:49,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:05:49,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:05:49,310 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 03:05:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:05:49,347 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2021-10-16 03:05:49,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:05:49,349 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-10-16 03:05:49,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:05:49,362 INFO L225 Difference]: With dead ends: 96 [2021-10-16 03:05:49,366 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 03:05:49,369 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:05:49,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 03:05:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-16 03:05:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 states have internal predecessors, (65), 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 03:05:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2021-10-16 03:05:49,413 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2021-10-16 03:05:49,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:05:49,413 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2021-10-16 03:05:49,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 03:05:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2021-10-16 03:05:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:05:49,415 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:49,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:05:49,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:05:49,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:05:49,631 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:05:49,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:49,632 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2021-10-16 03:05:49,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:05:49,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632133484] [2021-10-16 03:05:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:49,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:05:49,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:05:49,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:05:49,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:05:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:50,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 03:05:50,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:05:50,653 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 03:05:50,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:05:55,747 WARN L860 $PredicateComparison]: unable to prove that (= (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_sqrt_~x c_ULTIMATE.start___ieee754_sqrt_~x) c_ULTIMATE.start___ieee754_sqrt_~x) (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) is different from true [2021-10-16 03:06:00,329 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 03:06:00,330 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:00,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632133484] [2021-10-16 03:06:00,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632133484] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:00,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:00,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-16 03:06:00,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659219266] [2021-10-16 03:06:00,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 03:06:00,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:00,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 03:06:00,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2021-10-16 03:06:00,335 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 03:06:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:05,341 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2021-10-16 03:06:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 03:06:05,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 9 [2021-10-16 03:06:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:05,343 INFO L225 Difference]: With dead ends: 51 [2021-10-16 03:06:05,343 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 03:06:05,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5797.2ms TimeCoverageRelationStatistics Valid=44, Invalid=91, Unknown=1, NotChecked=20, Total=156 [2021-10-16 03:06:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 03:06:05,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-16 03:06:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 45 states have internal predecessors, (62), 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 03:06:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2021-10-16 03:06:05,353 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 9 [2021-10-16 03:06:05,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:05,354 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2021-10-16 03:06:05,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 03:06:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2021-10-16 03:06:05,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 03:06:05,356 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:05,356 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:05,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:05,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:05,577 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:05,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:05,578 INFO L82 PathProgramCache]: Analyzing trace with hash -677928537, now seen corresponding path program 1 times [2021-10-16 03:06:05,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:05,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947225097] [2021-10-16 03:06:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:05,580 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:05,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:05,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:05,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 03:06:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:05,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 03:06:05,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:06,215 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 03:06:06,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:08,701 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 03:06:08,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:08,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947225097] [2021-10-16 03:06:08,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947225097] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:08,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:08,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 03:06:08,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917852866] [2021-10-16 03:06:08,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:06:08,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:08,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:06:08,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-10-16 03:06:08,705 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 03:06:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:08,852 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2021-10-16 03:06:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:06:08,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 25 [2021-10-16 03:06:08,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:08,852 INFO L225 Difference]: With dead ends: 46 [2021-10-16 03:06:08,853 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:06:08,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2382.2ms TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-10-16 03:06:08,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:06:08,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:06:08,854 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 03:06:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:06:08,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-10-16 03:06:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:08,855 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:06:08,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 03:06:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:06:08,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:06:08,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:06:08,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 03:06:09,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:09,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:06:09,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:09,399 INFO L860 garLoopResultBuilder]: At program point L151(lines 134 152) the Hoare annotation is: true [2021-10-16 03:06:09,399 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-16 03:06:09,400 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:06:09,400 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:06:09,400 INFO L853 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-16 03:06:09,400 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 96) no Hoare annotation was computed. [2021-10-16 03:06:09,401 INFO L857 garLoopResultBuilder]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2021-10-16 03:06:09,401 INFO L853 garLoopResultBuilder]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2021-10-16 03:06:09,401 INFO L857 garLoopResultBuilder]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2021-10-16 03:06:09,401 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2021-10-16 03:06:09,402 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 66) no Hoare annotation was computed. [2021-10-16 03:06:09,402 INFO L857 garLoopResultBuilder]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-10-16 03:06:09,402 INFO L857 garLoopResultBuilder]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2021-10-16 03:06:09,402 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 35) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-16 03:06:09,402 INFO L857 garLoopResultBuilder]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2021-10-16 03:06:09,403 INFO L857 garLoopResultBuilder]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2021-10-16 03:06:09,403 INFO L853 garLoopResultBuilder]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2021-10-16 03:06:09,403 INFO L857 garLoopResultBuilder]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2021-10-16 03:06:09,403 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 149) no Hoare annotation was computed. [2021-10-16 03:06:09,403 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 114) no Hoare annotation was computed. [2021-10-16 03:06:09,404 INFO L857 garLoopResultBuilder]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2021-10-16 03:06:09,404 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 119) no Hoare annotation was computed. [2021-10-16 03:06:09,404 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-10-16 03:06:09,404 INFO L857 garLoopResultBuilder]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2021-10-16 03:06:09,404 INFO L857 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-10-16 03:06:09,405 INFO L853 garLoopResultBuilder]: At program point L131(lines 24 132) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-16 03:06:09,405 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:06:09,405 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 99) no Hoare annotation was computed. [2021-10-16 03:06:09,405 INFO L857 garLoopResultBuilder]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2021-10-16 03:06:09,406 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2021-10-16 03:06:09,406 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 60) no Hoare annotation was computed. [2021-10-16 03:06:09,406 INFO L857 garLoopResultBuilder]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2021-10-16 03:06:09,406 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 118) no Hoare annotation was computed. [2021-10-16 03:06:09,406 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 46) no Hoare annotation was computed. [2021-10-16 03:06:09,407 INFO L853 garLoopResultBuilder]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2021-10-16 03:06:09,407 INFO L857 garLoopResultBuilder]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2021-10-16 03:06:09,407 INFO L857 garLoopResultBuilder]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2021-10-16 03:06:09,407 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:06:09,407 INFO L853 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2021-10-16 03:06:09,408 INFO L857 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2021-10-16 03:06:09,408 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 45) no Hoare annotation was computed. [2021-10-16 03:06:09,408 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-10-16 03:06:09,408 INFO L857 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-10-16 03:06:09,408 INFO L853 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2021-10-16 03:06:09,408 INFO L857 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2021-10-16 03:06:09,409 INFO L857 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-10-16 03:06:09,409 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 117) no Hoare annotation was computed. [2021-10-16 03:06:09,409 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2021-10-16 03:06:09,409 INFO L857 garLoopResultBuilder]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2021-10-16 03:06:09,415 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:06:09,424 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,428 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,430 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,430 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,430 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,431 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,431 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,431 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,437 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,437 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:06:09 BoogieIcfgContainer [2021-10-16 03:06:09,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:06:09,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:06:09,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:06:09,439 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:06:09,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:48" (3/4) ... [2021-10-16 03:06:09,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 03:06:09,458 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-16 03:06:09,458 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-16 03:06:09,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:06:09,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:06:09,489 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-16 03:06:09,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-16 03:06:09,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:06:09,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:06:09,529 INFO L168 Benchmark]: Toolchain (without parser) took 25605.58 ms. Allocated memory is still 75.5 MB. Free memory was 53.0 MB in the beginning and 44.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:09,529 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 54.5 MB. Free memory is still 34.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:06:09,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.32 ms. Allocated memory is still 75.5 MB. Free memory was 52.7 MB in the beginning and 55.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:09,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.57 ms. Allocated memory is still 75.5 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:09,531 INFO L168 Benchmark]: Boogie Preprocessor took 51.71 ms. Allocated memory is still 75.5 MB. Free memory was 53.7 MB in the beginning and 51.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:09,531 INFO L168 Benchmark]: RCFGBuilder took 3987.10 ms. Allocated memory is still 75.5 MB. Free memory was 51.9 MB in the beginning and 36.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:09,531 INFO L168 Benchmark]: TraceAbstraction took 20965.75 ms. Allocated memory is still 75.5 MB. Free memory was 36.4 MB in the beginning and 48.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:09,532 INFO L168 Benchmark]: Witness Printer took 88.55 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 44.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:09,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 54.5 MB. Free memory is still 34.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.32 ms. Allocated memory is still 75.5 MB. Free memory was 52.7 MB in the beginning and 55.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.57 ms. Allocated memory is still 75.5 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.71 ms. Allocated memory is still 75.5 MB. Free memory was 53.7 MB in the beginning and 51.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3987.10 ms. Allocated memory is still 75.5 MB. Free memory was 51.9 MB in the beginning and 36.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20965.75 ms. Allocated memory is still 75.5 MB. Free memory was 36.4 MB in the beginning and 48.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 88.55 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 44.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 - 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 - 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: 147]: 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, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20868.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 14.0ms, AutomataDifference: 5245.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 330.3ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 127 SDtfs, 135 SDslu, 225 SDs, 0 SdLazy, 47 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2287.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 8179.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 34.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 75 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 63.5ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 259.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 63.6ms SsaConstructionTime, 854.3ms SatisfiabilityAnalysisTime, 13442.2ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 4 QuantifiedInterpolants, 285 SizeOfPredicates, 16 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant [2021-10-16 03:06:09,541 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,541 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 24]: Loop Invariant [2021-10-16 03:06:09,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,543 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,543 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,543 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,543 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,544 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,544 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,544 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2021-10-16 03:06:09,545 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,545 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,545 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,545 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,545 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,546 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,546 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,546 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,546 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,547 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,547 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 03:06:09,547 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-16 03:06:09,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88910d23-8e1b-404e-92e1-460afd48ce2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...