./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8 --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 0c154d02c9b21beef7a386877c7c252d45eb859a ..................................................................................................................................................................................................................................................................................................................... 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_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8 --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 0c154d02c9b21beef7a386877c7c252d45eb859a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:02:55,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:02:55,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:02:55,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:02:55,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:02:55,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:02:55,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:02:55,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:02:55,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:02:55,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:02:55,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:02:55,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:02:55,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:02:55,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:02:55,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:02:55,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:02:55,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:02:55,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:02:55,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:02:55,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:02:55,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:02:55,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:02:55,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:02:55,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:02:55,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:02:55,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:02:55,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:02:55,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:02:55,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:02:55,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:02:55,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:02:55,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:02:55,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:02:55,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:02:55,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:02:55,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:02:55,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:02:55,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:02:55,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:02:55,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:02:55,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:02:55,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:02:56,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:02:56,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:02:56,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:02:56,019 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:02:56,019 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:02:56,020 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:02:56,020 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:02:56,020 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:02:56,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:02:56,026 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:02:56,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:02:56,027 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:02:56,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:02:56,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:02:56,028 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:02:56,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:02:56,030 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:02:56,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:02:56,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:02:56,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:02:56,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:02:56,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:02:56,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:02:56,031 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:02:56,031 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:02:56,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:02:56,032 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:02:56,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:02:56,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:02:56,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:02:56,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:02:56,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:02:56,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:02:56,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:02:56,035 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:02:56,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:02:56,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:02:56,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:02:56,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:02:56,036 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_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2021-10-13 08:02:56,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:02:56,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:02:56,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:02:56,341 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:02:56,342 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:02:56,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2021-10-13 08:02:56,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/3095c3a82/5d9d7ff0aa544fbb99451eb161dda6cc/FLAGb8679f091 [2021-10-13 08:02:56,911 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:02:56,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2021-10-13 08:02:56,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/3095c3a82/5d9d7ff0aa544fbb99451eb161dda6cc/FLAGb8679f091 [2021-10-13 08:02:57,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/3095c3a82/5d9d7ff0aa544fbb99451eb161dda6cc [2021-10-13 08:02:57,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:02:57,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:02:57,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:02:57,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:02:57,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:02:57,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673b9adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57, skipping insertion in model container [2021-10-13 08:02:57,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:02:57,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:02:57,526 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_63645e50-0e3f-4c92-8e64-44316cde17fe/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2021-10-13 08:02:57,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:02:57,537 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:02:57,577 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_63645e50-0e3f-4c92-8e64-44316cde17fe/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2021-10-13 08:02:57,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:02:57,592 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:02:57,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57 WrapperNode [2021-10-13 08:02:57,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:02:57,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:02:57,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:02:57,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:02:57,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:02:57,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:02:57,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:02:57,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:02:57,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:02:57,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:02:57,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:02:57,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:02:57,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (1/1) ... [2021-10-13 08:02:57,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:02:57,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:02:57,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:02:57,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:02:57,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:02:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:02:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 08:02:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 08:02:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 08:02:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:02:57,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:02:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 08:02:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 08:02:58,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:02:58,289 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 08:02:58,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:02:58 BoogieIcfgContainer [2021-10-13 08:02:58,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:02:58,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:02:58,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:02:58,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:02:58,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:02:57" (1/3) ... [2021-10-13 08:02:58,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d95a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:02:58, skipping insertion in model container [2021-10-13 08:02:58,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:57" (2/3) ... [2021-10-13 08:02:58,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d95a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:02:58, skipping insertion in model container [2021-10-13 08:02:58,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:02:58" (3/3) ... [2021-10-13 08:02:58,299 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2021-10-13 08:02:58,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:02:58,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:02:58,366 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:02:58,375 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 [2021-10-13 08:02:58,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:02:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 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) [2021-10-13 08:02:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 08:02:58,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:02:58,411 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:02:58,412 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:02:58,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:02:58,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1471094899, now seen corresponding path program 1 times [2021-10-13 08:02:58,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:02:58,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930018154] [2021-10-13 08:02:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:58,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:02:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:58,594 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:02:58,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930018154] [2021-10-13 08:02:58,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930018154] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:02:58,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:02:58,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 08:02:58,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138191437] [2021-10-13 08:02:58,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 08:02:58,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:02:58,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 08:02:58,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:02:58,617 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:58,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:02:58,633 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2021-10-13 08:02:58,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 08:02:58,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 08:02:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:02:58,663 INFO L225 Difference]: With dead ends: 67 [2021-10-13 08:02:58,664 INFO L226 Difference]: Without dead ends: 32 [2021-10-13 08:02:58,666 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 [2021-10-13 08:02:58,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-13 08:02:58,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-13 08:02:58,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 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) [2021-10-13 08:02:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2021-10-13 08:02:58,698 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2021-10-13 08:02:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:02:58,699 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-10-13 08:02:58,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2021-10-13 08:02:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 08:02:58,700 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:02:58,700 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:02:58,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 08:02:58,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:02:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:02:58,702 INFO L82 PathProgramCache]: Analyzing trace with hash -427415974, now seen corresponding path program 1 times [2021-10-13 08:02:58,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:02:58,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696728242] [2021-10-13 08:02:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:58,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:02:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:02:58,749 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 08:02:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:02:58,825 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 08:02:58,825 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 08:02:58,827 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:02:58,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 08:02:58,835 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:02:58,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:02:58 BoogieIcfgContainer [2021-10-13 08:02:58,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:02:58,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:02:58,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:02:58,895 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:02:58,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:02:58" (3/4) ... [2021-10-13 08:02:58,900 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 08:02:58,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:02:58,903 INFO L168 Benchmark]: Toolchain (without parser) took 1627.17 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 68.3 MB in the beginning and 93.7 MB in the end (delta: -25.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:58,903 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 98.6 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:02:58,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.65 ms. Allocated memory is still 98.6 MB. Free memory was 68.0 MB in the beginning and 72.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:58,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.86 ms. Allocated memory is still 98.6 MB. Free memory was 72.6 MB in the beginning and 70.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:58,912 INFO L168 Benchmark]: Boogie Preprocessor took 33.49 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 68.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:58,913 INFO L168 Benchmark]: RCFGBuilder took 617.14 ms. Allocated memory is still 98.6 MB. Free memory was 68.4 MB in the beginning and 48.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:58,914 INFO L168 Benchmark]: TraceAbstraction took 599.86 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 47.8 MB in the beginning and 94.3 MB in the end (delta: -46.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:02:58,914 INFO L168 Benchmark]: Witness Printer took 6.12 ms. Allocated memory is still 127.9 MB. Free memory was 94.3 MB in the beginning and 93.7 MB in the end (delta: 571.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:02:58,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 98.6 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 317.65 ms. Allocated memory is still 98.6 MB. Free memory was 68.0 MB in the beginning and 72.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.86 ms. Allocated memory is still 98.6 MB. Free memory was 72.6 MB in the beginning and 70.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.49 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 68.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 617.14 ms. Allocated memory is still 98.6 MB. Free memory was 68.4 MB in the beginning and 48.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 599.86 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 47.8 MB in the beginning and 94.3 MB in the end (delta: -46.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.12 ms. Allocated memory is still 127.9 MB. Free memory was 94.3 MB in the beginning and 93.7 MB in the end (delta: 571.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 160]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 146, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 117. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; [L155] float x = 0.0f / 0.0f; [L107] float y, z; [L108] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L156] float res = __ieee754_log10f(x); [L146] return x != x; [L159] COND TRUE !isnan_float(res) [L160] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 468.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 23.6ms, AutomataDifference: 63.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 41 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=34occurred 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: 18.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.3ms SsaConstructionTime, 78.3ms SatisfiabilityAnalysisTime, 47.3ms InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2021-10-13 08:02:58,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:03:01,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:03:01,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:03:01,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:03:01,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:03:01,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:03:01,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:03:01,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:03:01,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:03:01,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:03:01,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:03:01,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:03:01,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:03:01,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:03:01,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:03:01,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:03:01,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:03:01,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:03:01,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:03:01,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:03:01,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:03:01,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:03:01,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:03:01,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:03:01,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:03:01,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:03:01,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:03:01,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:03:01,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:03:01,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:03:01,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:03:01,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:03:01,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:03:01,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:03:01,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:03:01,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:03:01,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:03:01,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:03:01,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:03:01,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:03:01,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:03:01,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 08:03:01,705 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:03:01,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:03:01,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:03:01,706 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:03:01,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:03:01,707 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:03:01,707 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:03:01,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:03:01,707 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:03:01,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:03:01,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:03:01,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:03:01,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:03:01,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:03:01,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:03:01,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:03:01,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:03:01,710 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:03:01,710 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:03:01,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:03:01,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:03:01,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:03:01,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:03:01,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:03:01,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:03:01,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:03:01,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:03:01,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:03:01,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:03:01,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:03:01,713 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:03:01,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:03:01,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:03:01,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:03:01,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:03:01,714 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_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2021-10-13 08:03:02,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:03:02,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:03:02,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:03:02,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:03:02,185 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:03:02,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2021-10-13 08:03:02,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/16080b483/ec8d9654bbf34d1c86b9d5812a85f9b1/FLAG54e9c2f1c [2021-10-13 08:03:02,876 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:03:02,877 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2021-10-13 08:03:02,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/16080b483/ec8d9654bbf34d1c86b9d5812a85f9b1/FLAG54e9c2f1c [2021-10-13 08:03:03,197 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/data/16080b483/ec8d9654bbf34d1c86b9d5812a85f9b1 [2021-10-13 08:03:03,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:03:03,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:03:03,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:03:03,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:03:03,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:03:03,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e1c207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03, skipping insertion in model container [2021-10-13 08:03:03,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:03:03,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:03:03,477 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_63645e50-0e3f-4c92-8e64-44316cde17fe/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2021-10-13 08:03:03,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:03:03,515 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:03:03,619 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_63645e50-0e3f-4c92-8e64-44316cde17fe/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2021-10-13 08:03:03,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:03:03,652 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:03:03,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03 WrapperNode [2021-10-13 08:03:03,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:03:03,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:03:03,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:03:03,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:03:03,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:03:03,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:03:03,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:03:03,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:03:03,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:03:03,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:03:03,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:03:03,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:03:03,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (1/1) ... [2021-10-13 08:03:03,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:03:03,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:03:03,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:03:03,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:03:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:03:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:03:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-13 08:03:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 08:03:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:03:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:03:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-13 08:03:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 08:03:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 08:03:24,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:03:24,502 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 08:03:24,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:03:24 BoogieIcfgContainer [2021-10-13 08:03:24,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:03:24,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:03:24,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:03:24,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:03:24,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:03:03" (1/3) ... [2021-10-13 08:03:24,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2c92b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:03:24, skipping insertion in model container [2021-10-13 08:03:24,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:03:03" (2/3) ... [2021-10-13 08:03:24,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2c92b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:03:24, skipping insertion in model container [2021-10-13 08:03:24,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:03:24" (3/3) ... [2021-10-13 08:03:24,512 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2021-10-13 08:03:24,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:03:24,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:03:24,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:03:24,576 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 [2021-10-13 08:03:24,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:03:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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) [2021-10-13 08:03:24,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 08:03:24,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:24,613 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:24,614 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:03:24,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:24,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2021-10-13 08:03:24,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:24,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058621632] [2021-10-13 08:03:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:24,645 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:24,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:24,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:24,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:03:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:25,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 08:03:25,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:25,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:25,628 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:25,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058621632] [2021-10-13 08:03:25,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058621632] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:25,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:25,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 08:03:25,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297984495] [2021-10-13 08:03:25,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 08:03:25,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:25,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 08:03:25,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:03:25,659 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:25,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:25,684 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-10-13 08:03:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 08:03:25,686 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 08:03:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:25,695 INFO L225 Difference]: With dead ends: 86 [2021-10-13 08:03:25,695 INFO L226 Difference]: Without dead ends: 41 [2021-10-13 08:03:25,698 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:03:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-13 08:03:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-13 08:03:25,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 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) [2021-10-13 08:03:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2021-10-13 08:03:25,737 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2021-10-13 08:03:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:25,737 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2021-10-13 08:03:25,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2021-10-13 08:03:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:03:25,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:25,741 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:25,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:25,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:25,942 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:03:25,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:25,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2021-10-13 08:03:25,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:25,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878821803] [2021-10-13 08:03:25,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:25,945 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:25,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:25,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:25,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:03:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:26,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:03:26,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:26,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:27,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:27,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878821803] [2021-10-13 08:03:27,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878821803] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:27,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:27,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 08:03:27,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393011104] [2021-10-13 08:03:27,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:03:27,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:27,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:03:27,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:03:27,094 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-10-13 08:03:29,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:29,908 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-10-13 08:03:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 08:03:29,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 10 [2021-10-13 08:03:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:29,910 INFO L225 Difference]: With dead ends: 51 [2021-10-13 08:03:29,910 INFO L226 Difference]: Without dead ends: 46 [2021-10-13 08:03:29,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 549.1ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:03:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-13 08:03:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2021-10-13 08:03:29,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 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) [2021-10-13 08:03:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2021-10-13 08:03:29,921 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2021-10-13 08:03:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:29,922 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2021-10-13 08:03:29,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-10-13 08:03:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2021-10-13 08:03:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 08:03:29,923 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:29,924 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:29,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:30,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:30,131 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:03:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:30,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2021-10-13 08:03:30,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:30,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606134344] [2021-10-13 08:03:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:30,136 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:30,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:30,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:30,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:03:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:30,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 08:03:30,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:31,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:45,368 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:45,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606134344] [2021-10-13 08:03:45,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606134344] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:45,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:45,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 08:03:45,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414961947] [2021-10-13 08:03:45,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 08:03:45,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:45,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 08:03:45,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:03:45,371 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-10-13 08:04:21,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:21,937 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2021-10-13 08:04:22,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 08:04:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 11 [2021-10-13 08:04:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:22,010 INFO L225 Difference]: With dead ends: 47 [2021-10-13 08:04:22,010 INFO L226 Difference]: Without dead ends: 42 [2021-10-13 08:04:22,011 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6311.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-10-13 08:04:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-13 08:04:22,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2021-10-13 08:04:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 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) [2021-10-13 08:04:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2021-10-13 08:04:22,020 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 11 [2021-10-13 08:04:22,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:22,020 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-10-13 08:04:22,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-10-13 08:04:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2021-10-13 08:04:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 08:04:22,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:22,022 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] [2021-10-13 08:04:22,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:22,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:22,229 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:04:22,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:22,229 INFO L82 PathProgramCache]: Analyzing trace with hash -256490092, now seen corresponding path program 1 times [2021-10-13 08:04:22,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:22,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781154534] [2021-10-13 08:04:22,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:22,231 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:22,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:22,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:22,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 08:04:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:23,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 08:04:23,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:23,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:24,215 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:24,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781154534] [2021-10-13 08:04:24,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781154534] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:04:24,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:24,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 08:04:24,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645517292] [2021-10-13 08:04:24,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 08:04:24,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:24,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 08:04:24,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:04:24,219 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 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) [2021-10-13 08:04:24,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:24,458 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2021-10-13 08:04:24,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:04:24,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 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 22 [2021-10-13 08:04:24,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:24,459 INFO L225 Difference]: With dead ends: 41 [2021-10-13 08:04:24,459 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:04:24,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 589.1ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:04:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:04:24,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:04:24,460 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) [2021-10-13 08:04:24,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:04:24,461 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-13 08:04:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:24,461 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:04:24,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 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) [2021-10-13 08:04:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:04:24,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:04:24,465 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:04:24,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 08:04:24,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:24,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:04:24,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:24,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:25,607 INFO L857 garLoopResultBuilder]: For program point L159(lines 159 162) no Hoare annotation was computed. [2021-10-13 08:04:25,607 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 126 130) no Hoare annotation was computed. [2021-10-13 08:04:25,607 INFO L853 garLoopResultBuilder]: At program point L126-2(lines 126 130) the Hoare annotation is: false [2021-10-13 08:04:25,607 INFO L857 garLoopResultBuilder]: For program point L110-1(lines 110 114) no Hoare annotation was computed. [2021-10-13 08:04:25,607 INFO L853 garLoopResultBuilder]: At program point L110-2(lines 110 114) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-13 08:04:25,607 INFO L857 garLoopResultBuilder]: For program point L110-3(lines 110 114) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L857 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 120) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-10-13 08:04:25,608 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2021-10-13 08:04:25,609 INFO L857 garLoopResultBuilder]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2021-10-13 08:04:25,609 INFO L853 garLoopResultBuilder]: At program point L95(lines 21 97) the Hoare annotation is: false [2021-10-13 08:04:25,609 INFO L857 garLoopResultBuilder]: For program point L38(lines 38 46) no Hoare annotation was computed. [2021-10-13 08:04:25,609 INFO L857 garLoopResultBuilder]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2021-10-13 08:04:25,609 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2021-10-13 08:04:25,609 INFO L853 garLoopResultBuilder]: At program point L146(line 146) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32)))) [2021-10-13 08:04:25,610 INFO L860 garLoopResultBuilder]: At program point L164(lines 148 165) the Hoare annotation is: true [2021-10-13 08:04:25,610 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 33) no Hoare annotation was computed. [2021-10-13 08:04:25,610 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:04:25,610 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 131) no Hoare annotation was computed. [2021-10-13 08:04:25,610 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 123 131) no Hoare annotation was computed. [2021-10-13 08:04:25,610 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 73) no Hoare annotation was computed. [2021-10-13 08:04:25,610 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2021-10-13 08:04:25,610 INFO L857 garLoopResultBuilder]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2021-10-13 08:04:25,611 INFO L853 garLoopResultBuilder]: At program point L41-2(lines 41 45) the Hoare annotation is: false [2021-10-13 08:04:25,611 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:04:25,611 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 65) no Hoare annotation was computed. [2021-10-13 08:04:25,611 INFO L857 garLoopResultBuilder]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2021-10-13 08:04:25,611 INFO L853 garLoopResultBuilder]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2021-10-13 08:04:25,611 INFO L857 garLoopResultBuilder]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2021-10-13 08:04:25,611 INFO L857 garLoopResultBuilder]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2021-10-13 08:04:25,612 INFO L853 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2021-10-13 08:04:25,612 INFO L857 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2021-10-13 08:04:25,612 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2021-10-13 08:04:25,612 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-10-13 08:04:25,612 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 95) no Hoare annotation was computed. [2021-10-13 08:04:25,612 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2021-10-13 08:04:25,612 INFO L857 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2021-10-13 08:04:25,612 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 96) no Hoare annotation was computed. [2021-10-13 08:04:25,613 INFO L853 garLoopResultBuilder]: At program point L142(lines 106 143) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32)))) [2021-10-13 08:04:25,620 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:04:25,632 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,640 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,643 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,643 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,643 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 08:04:25,645 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 08:04:25,646 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:04:25 BoogieIcfgContainer [2021-10-13 08:04:25,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:04:25,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:04:25,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:04:25,651 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:04:25,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:03:24" (3/4) ... [2021-10-13 08:04:25,654 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:04:25,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-13 08:04:25,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-13 08:04:25,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:04:25,671 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:04:25,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-13 08:04:25,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32) [2021-10-13 08:04:25,696 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && !(~bvand32(2147483647bv32, hx) == 0bv32) [2021-10-13 08:04:25,739 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:04:25,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:04:25,741 INFO L168 Benchmark]: Toolchain (without parser) took 82538.99 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 32.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:25,742 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:04:25,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.77 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 43.3 MB in the end (delta: -617.8 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:25,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.34 ms. Allocated memory is still 62.9 MB. Free memory was 43.3 MB in the beginning and 40.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:25,743 INFO L168 Benchmark]: Boogie Preprocessor took 89.55 ms. Allocated memory is still 62.9 MB. Free memory was 40.9 MB in the beginning and 38.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:25,744 INFO L168 Benchmark]: RCFGBuilder took 20668.20 ms. Allocated memory is still 62.9 MB. Free memory was 38.8 MB in the beginning and 40.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:25,744 INFO L168 Benchmark]: TraceAbstraction took 61141.32 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 37.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:25,744 INFO L168 Benchmark]: Witness Printer took 89.86 ms. Allocated memory is still 62.9 MB. Free memory was 37.4 MB in the beginning and 32.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:25,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 450.77 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 43.3 MB in the end (delta: -617.8 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.34 ms. Allocated memory is still 62.9 MB. Free memory was 43.3 MB in the beginning and 40.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.55 ms. Allocated memory is still 62.9 MB. Free memory was 40.9 MB in the beginning and 38.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 20668.20 ms. Allocated memory is still 62.9 MB. Free memory was 38.8 MB in the beginning and 40.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 61141.32 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 37.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * Witness Printer took 89.86 ms. Allocated memory is still 62.9 MB. Free memory was 37.4 MB in the beginning and 32.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - 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: 160]: 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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61050.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 28.4ms, AutomataDifference: 39763.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 940.6ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 140 SDtfs, 190 SDslu, 288 SDs, 0 SdLazy, 122 SolverSat, 15 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 37945.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 7449.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 44.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 102 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 97.0ms HoareSimplificationTime, 10 FomulaSimplificationsInter, 88 FormulaSimplificationTreeSizeReductionInter, 837.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 95.6ms SsaConstructionTime, 2485.2ms SatisfiabilityAnalysisTime, 16546.1ms InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 12 QuantifiedInterpolants, 520 SizeOfPredicates, 24 NumberOfNonLiveVariables, 263 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 148]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant [2021-10-13 08:04:25,757 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,758 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,758 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,758 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,758 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,763 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,763 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,766 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,766 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && !(~bvand32(2147483647bv32, hx) == 0bv32) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 106]: Loop Invariant [2021-10-13 08:04:25,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,775 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,775 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,776 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,776 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32) - InvariantResult [Line: 110]: Loop Invariant [2021-10-13 08:04:25,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 08:04:25,777 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 08:04:25,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 08:04:25,778 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 08:04:25,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63645e50-0e3f-4c92-8e64-44316cde17fe/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...