./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V --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 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:34:56,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:34:56,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:34:56,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:34:56,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:34:56,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:34:56,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:34:56,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:34:56,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:34:56,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:34:56,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:34:56,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:34:56,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:34:56,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:34:56,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:34:56,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:34:56,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:34:56,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:34:56,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:34:56,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:34:56,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:34:56,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:34:56,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:34:57,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:34:57,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:34:57,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:34:57,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:34:57,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:34:57,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:34:57,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:34:57,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:34:57,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:34:57,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:34:57,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:34:57,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:34:57,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:34:57,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:34:57,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:34:57,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:34:57,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:34:57,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:34:57,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:34:57,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:34:57,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:34:57,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:34:57,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:34:57,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:34:57,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:34:57,067 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:34:57,067 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:34:57,067 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:34:57,067 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:34:57,068 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:34:57,069 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:34:57,069 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:34:57,069 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:34:57,069 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:34:57,070 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:34:57,070 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:34:57,070 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:34:57,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:34:57,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:34:57,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:34:57,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:34:57,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:34:57,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:34:57,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:34:57,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:34:57,074 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:34:57,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:34:57,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:34:57,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:34:57,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:34:57,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:34:57,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:57,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:34:57,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:34:57,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:34:57,077 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:34:57,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:34:57,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:34:57,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:34:57,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:34:57,077 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_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 [2021-11-23 03:34:57,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:34:57,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:34:57,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:34:57,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:34:57,362 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:34:57,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2021-11-23 03:34:57,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/26862a688/dabfe01a67c24066b66d40e777e5cb90/FLAG7966d5eee [2021-11-23 03:34:57,897 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:34:57,898 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2021-11-23 03:34:57,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/26862a688/dabfe01a67c24066b66d40e777e5cb90/FLAG7966d5eee [2021-11-23 03:34:58,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/26862a688/dabfe01a67c24066b66d40e777e5cb90 [2021-11-23 03:34:58,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:34:58,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:34:58,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:58,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:34:58,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:34:58,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ecdd223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58, skipping insertion in model container [2021-11-23 03:34:58,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:34:58,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:34:58,539 WARN L230 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_7b4ff5e7-0679-4fff-af5a-8d7665296a54/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2021-11-23 03:34:58,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:58,552 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:34:58,601 WARN L230 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_7b4ff5e7-0679-4fff-af5a-8d7665296a54/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2021-11-23 03:34:58,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:58,620 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:34:58,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58 WrapperNode [2021-11-23 03:34:58,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:58,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:58,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:34:58,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:34:58,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,683 INFO L137 Inliner]: procedures = 19, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 216 [2021-11-23 03:34:58,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:58,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:34:58,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:34:58,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:34:58,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:34:58,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:34:58,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:34:58,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:34:58,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2021-11-23 03:34:58,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:58,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:58,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:34:58,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:34:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:34:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:34:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:34:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 03:34:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:34:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 03:34:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-23 03:34:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-23 03:34:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:34:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:34:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:34:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 03:34:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-23 03:34:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-23 03:34:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:34:58,919 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:34:58,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:34:59,283 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:34:59,377 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:34:59,378 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-23 03:34:59,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:59 BoogieIcfgContainer [2021-11-23 03:34:59,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:34:59,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:34:59,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:34:59,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:34:59,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:34:58" (1/3) ... [2021-11-23 03:34:59,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3bdf0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:59, skipping insertion in model container [2021-11-23 03:34:59,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (2/3) ... [2021-11-23 03:34:59,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3bdf0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:59, skipping insertion in model container [2021-11-23 03:34:59,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:59" (3/3) ... [2021-11-23 03:34:59,396 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0686b.c [2021-11-23 03:34:59,402 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:34:59,403 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:34:59,453 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:34:59,466 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, mAutomataTypeConcurrency=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 [2021-11-23 03:34:59,466 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:34:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 60 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:34:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 03:34:59,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:59,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:59,513 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:59,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 227677672, now seen corresponding path program 1 times [2021-11-23 03:34:59,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:59,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665515139] [2021-11-23 03:34:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:59,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:59,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665515139] [2021-11-23 03:34:59,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665515139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:59,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:59,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:34:59,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262536006] [2021-11-23 03:34:59,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:59,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:34:59,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:59,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:34:59,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:34:59,802 INFO L87 Difference]: Start difference. First operand has 67 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 60 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2021-11-23 03:34:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:59,893 INFO L93 Difference]: Finished difference Result 133 states and 221 transitions. [2021-11-23 03:34:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:34:59,895 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 [2021-11-23 03:34:59,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:59,907 INFO L225 Difference]: With dead ends: 133 [2021-11-23 03:34:59,908 INFO L226 Difference]: Without dead ends: 65 [2021-11-23 03:34:59,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:34:59,918 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:59,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:34:59,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-23 03:34:59,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-23 03:34:59,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 58 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:34:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 92 transitions. [2021-11-23 03:34:59,978 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 92 transitions. Word has length 9 [2021-11-23 03:34:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:59,979 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 92 transitions. [2021-11-23 03:34:59,979 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) [2021-11-23 03:34:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 92 transitions. [2021-11-23 03:34:59,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 03:34:59,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:59,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:59,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:34:59,980 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:59,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:59,981 INFO L85 PathProgramCache]: Analyzing trace with hash -216192111, now seen corresponding path program 1 times [2021-11-23 03:34:59,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:59,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103285777] [2021-11-23 03:34:59,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:59,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:35:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:35:00,087 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:35:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:35:00,203 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:35:00,203 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:35:00,206 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:35:00,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:35:00,214 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 03:35:00,217 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:35:00,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:35:00 BoogieIcfgContainer [2021-11-23 03:35:00,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:35:00,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:35:00,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:35:00,260 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:35:00,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:59" (3/4) ... [2021-11-23 03:35:00,263 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 03:35:00,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:35:00,264 INFO L158 Benchmark]: Toolchain (without parser) took 1985.40ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 77.5MB in the beginning and 75.7MB in the end (delta: 1.8MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2021-11-23 03:35:00,265 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:35:00,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.89ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 77.5MB in the beginning and 98.1MB in the end (delta: -20.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:35:00,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.68ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:35:00,267 INFO L158 Benchmark]: Boogie Preprocessor took 53.41ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 93.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:35:00,267 INFO L158 Benchmark]: RCFGBuilder took 642.82ms. Allocated memory is still 125.8MB. Free memory was 93.3MB in the beginning and 69.2MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 03:35:00,268 INFO L158 Benchmark]: TraceAbstraction took 873.06ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 76.3MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:35:00,269 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 125.8MB. Free memory was 76.3MB in the beginning and 75.7MB in the end (delta: 568.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:35:00,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.89ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 77.5MB in the beginning and 98.1MB in the end (delta: -20.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.68ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.41ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 93.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 642.82ms. Allocated memory is still 125.8MB. Free memory was 93.3MB in the beginning and 69.2MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 873.06ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 76.3MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 125.8MB. Free memory was 76.3MB in the beginning and 75.7MB in the end (delta: 568.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 231]: 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 230, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L224] float x = 1.0f / 0.0f; [L225] float y = -1.0f / 0.0f; [L227] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L227] RET, EXPR __ieee754_atan2f(y, x) [L227] float res = __ieee754_atan2f(y, x); [L230] COND TRUE res != -pi_o_4 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L231] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-11-23 03:35:00,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V --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 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:35:02,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:35:02,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:35:02,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:35:02,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:35:02,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:35:02,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:35:02,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:35:02,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:35:02,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:35:02,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:35:02,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:35:02,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:35:02,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:35:02,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:35:02,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:35:02,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:35:02,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:35:02,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:35:02,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:35:02,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:35:02,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:35:02,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:35:02,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:35:02,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:35:02,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:35:02,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:35:02,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:35:02,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:35:02,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:35:02,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:35:02,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:35:02,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:35:02,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:35:02,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:35:02,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:35:02,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:35:02,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:35:02,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:35:02,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:35:02,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:35:02,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 03:35:02,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:35:02,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:35:02,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:35:02,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:35:02,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:35:02,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:35:02,920 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:35:02,921 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:35:02,921 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:35:02,921 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:35:02,922 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:35:02,922 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:35:02,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:35:02,924 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:35:02,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:35:02,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:35:02,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:35:02,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:35:02,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:35:02,925 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:35:02,925 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 03:35:02,926 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 03:35:02,926 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:35:02,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:35:02,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:35:02,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:35:02,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:35:02,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 03:35:02,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:35:02,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:35:02,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:35:02,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:35:02,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:35:02,928 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 03:35:02,928 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 03:35:02,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:35:02,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:35:02,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:35:02,929 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_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 [2021-11-23 03:35:03,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:35:03,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:35:03,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:35:03,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:35:03,339 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:35:03,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2021-11-23 03:35:03,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/5b8ac0a8d/23dd0ba838c34cfea4e1a0ec25f81387/FLAGefd8d0a0e [2021-11-23 03:35:04,106 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:35:04,107 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2021-11-23 03:35:04,116 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/5b8ac0a8d/23dd0ba838c34cfea4e1a0ec25f81387/FLAGefd8d0a0e [2021-11-23 03:35:04,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/data/5b8ac0a8d/23dd0ba838c34cfea4e1a0ec25f81387 [2021-11-23 03:35:04,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:35:04,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:35:04,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:35:04,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:35:04,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:35:04,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d948913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04, skipping insertion in model container [2021-11-23 03:35:04,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:35:04,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:35:04,428 WARN L230 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_7b4ff5e7-0679-4fff-af5a-8d7665296a54/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2021-11-23 03:35:04,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:35:04,456 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:35:04,541 WARN L230 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_7b4ff5e7-0679-4fff-af5a-8d7665296a54/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2021-11-23 03:35:04,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:35:04,573 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:35:04,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04 WrapperNode [2021-11-23 03:35:04,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:35:04,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:35:04,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:35:04,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:35:04,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,657 INFO L137 Inliner]: procedures = 22, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 217 [2021-11-23 03:35:04,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:35:04,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:35:04,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:35:04,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:35:04,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:35:04,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:35:04,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:35:04,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:35:04,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (1/1) ... [2021-11-23 03:35:04,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:35:04,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:35:04,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:35:04,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:35:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:35:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-23 03:35:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 03:35:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:35:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 03:35:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-23 03:35:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-23 03:35:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 03:35:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:35:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:35:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 03:35:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-23 03:35:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-23 03:35:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 03:35:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:35:05,004 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:35:05,006 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:35:15,729 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:35:15,736 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:35:15,736 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-23 03:35:15,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:15 BoogieIcfgContainer [2021-11-23 03:35:15,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:35:15,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:35:15,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:35:15,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:35:15,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:35:04" (1/3) ... [2021-11-23 03:35:15,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc746aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:15, skipping insertion in model container [2021-11-23 03:35:15,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:04" (2/3) ... [2021-11-23 03:35:15,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc746aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:15, skipping insertion in model container [2021-11-23 03:35:15,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:15" (3/3) ... [2021-11-23 03:35:15,747 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0686b.c [2021-11-23 03:35:15,753 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:35:15,753 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:35:15,804 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:35:15,812 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, mAutomataTypeConcurrency=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 [2021-11-23 03:35:15,812 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:35:15,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:35:15,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:35:15,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:15,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:15,836 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:15,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1138107774, now seen corresponding path program 1 times [2021-11-23 03:35:15,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:15,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009848689] [2021-11-23 03:35:15,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:15,856 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:15,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:15,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:15,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 03:35:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:16,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 03:35:16,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:16,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:16,959 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:16,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009848689] [2021-11-23 03:35:16,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009848689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:16,960 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:16,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 03:35:16,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566770071] [2021-11-23 03:35:16,963 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:16,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:35:16,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:17,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:35:17,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:35:17,006 INFO L87 Difference]: Start difference. First operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-23 03:35:17,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:17,041 INFO L93 Difference]: Finished difference Result 178 states and 290 transitions. [2021-11-23 03:35:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:35:17,043 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 [2021-11-23 03:35:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:17,051 INFO L225 Difference]: With dead ends: 178 [2021-11-23 03:35:17,051 INFO L226 Difference]: Without dead ends: 87 [2021-11-23 03:35:17,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:35:17,058 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:17,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:35:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-23 03:35:17,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-23 03:35:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.475) internal successors, (118), 80 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:35:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 126 transitions. [2021-11-23 03:35:17,103 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 126 transitions. Word has length 10 [2021-11-23 03:35:17,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:17,104 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 126 transitions. [2021-11-23 03:35:17,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-23 03:35:17,104 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 126 transitions. [2021-11-23 03:35:17,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:35:17,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:17,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:17,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 03:35:17,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:17,322 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:17,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:17,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1466192473, now seen corresponding path program 1 times [2021-11-23 03:35:17,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:17,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103700395] [2021-11-23 03:35:17,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:17,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:17,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:17,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:17,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 03:35:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:18,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 03:35:18,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:18,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2021-11-23 03:35:19,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-11-23 03:35:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:19,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:21,313 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:21,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103700395] [2021-11-23 03:35:21,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103700395] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:21,314 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:21,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-23 03:35:21,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631190234] [2021-11-23 03:35:21,320 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:21,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:35:21,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:21,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:35:21,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:35:21,323 INFO L87 Difference]: Start difference. First operand 87 states and 126 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2021-11-23 03:35:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:21,779 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-11-23 03:35:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:35:21,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 12 [2021-11-23 03:35:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:21,786 INFO L225 Difference]: With dead ends: 91 [2021-11-23 03:35:21,786 INFO L226 Difference]: Without dead ends: 87 [2021-11-23 03:35:21,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:35:21,793 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:21,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 907 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 31 Unchecked, 0.4s Time] [2021-11-23 03:35:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-23 03:35:21,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-23 03:35:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.4625) internal successors, (117), 80 states have internal predecessors, (117), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:35:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions. [2021-11-23 03:35:21,806 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 12 [2021-11-23 03:35:21,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:21,806 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions. [2021-11-23 03:35:21,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2021-11-23 03:35:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2021-11-23 03:35:21,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:35:21,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:21,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:21,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 03:35:22,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:22,030 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:22,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:22,031 INFO L85 PathProgramCache]: Analyzing trace with hash -369945613, now seen corresponding path program 1 times [2021-11-23 03:35:22,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:22,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340373970] [2021-11-23 03:35:22,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:22,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:22,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:22,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:22,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 03:35:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:22,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 03:35:22,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:23,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:23,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:23,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340373970] [2021-11-23 03:35:23,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340373970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:23,969 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:23,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 03:35:23,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069214621] [2021-11-23 03:35:23,969 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:23,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:35:23,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:23,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:35:23,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:23,971 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-11-23 03:35:24,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:24,434 INFO L93 Difference]: Finished difference Result 176 states and 253 transitions. [2021-11-23 03:35:24,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:35:24,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 17 [2021-11-23 03:35:24,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:24,437 INFO L225 Difference]: With dead ends: 176 [2021-11-23 03:35:24,437 INFO L226 Difference]: Without dead ends: 102 [2021-11-23 03:35:24,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:24,439 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 38 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:24,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 660 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 15 Unchecked, 0.4s Time] [2021-11-23 03:35:24,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-23 03:35:24,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 81. [2021-11-23 03:35:24,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.4324324324324325) internal successors, (106), 74 states have internal predecessors, (106), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:35:24,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 114 transitions. [2021-11-23 03:35:24,452 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 114 transitions. Word has length 17 [2021-11-23 03:35:24,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:24,453 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 114 transitions. [2021-11-23 03:35:24,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-11-23 03:35:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 114 transitions. [2021-11-23 03:35:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:35:24,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:24,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:24,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:35:24,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:24,670 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:24,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:24,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2028116593, now seen corresponding path program 1 times [2021-11-23 03:35:24,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:24,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823916527] [2021-11-23 03:35:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:24,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:24,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:24,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:24,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 03:35:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:25,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 03:35:25,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:26,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:26,619 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:26,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823916527] [2021-11-23 03:35:26,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823916527] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:26,623 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:26,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 03:35:26,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408686313] [2021-11-23 03:35:26,628 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:26,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:35:26,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:26,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:35:26,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:26,632 INFO L87 Difference]: Start difference. First operand 81 states and 114 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-11-23 03:35:26,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:26,721 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2021-11-23 03:35:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:35:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 17 [2021-11-23 03:35:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:26,724 INFO L225 Difference]: With dead ends: 108 [2021-11-23 03:35:26,724 INFO L226 Difference]: Without dead ends: 102 [2021-11-23 03:35:26,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:26,725 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 50 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:26,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 650 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 13 Unchecked, 0.1s Time] [2021-11-23 03:35:26,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-23 03:35:26,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 79. [2021-11-23 03:35:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 72 states have internal predecessors, (102), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:35:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 110 transitions. [2021-11-23 03:35:26,736 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 110 transitions. Word has length 17 [2021-11-23 03:35:26,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:26,736 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 110 transitions. [2021-11-23 03:35:26,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-11-23 03:35:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2021-11-23 03:35:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 03:35:26,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:26,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:26,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:35:26,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:26,963 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:26,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:26,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1893883166, now seen corresponding path program 1 times [2021-11-23 03:35:26,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:26,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782661767] [2021-11-23 03:35:26,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:26,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:26,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:26,965 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:26,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 03:35:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:27,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 03:35:27,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:28,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:29,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:29,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782661767] [2021-11-23 03:35:29,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782661767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:29,213 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:29,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-23 03:35:29,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714588330] [2021-11-23 03:35:29,213 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:29,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:35:29,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:35:29,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:35:29,215 INFO L87 Difference]: Start difference. First operand 79 states and 110 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2021-11-23 03:35:29,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:29,882 INFO L93 Difference]: Finished difference Result 98 states and 131 transitions. [2021-11-23 03:35:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:35:29,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 18 [2021-11-23 03:35:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:29,885 INFO L225 Difference]: With dead ends: 98 [2021-11-23 03:35:29,885 INFO L226 Difference]: Without dead ends: 94 [2021-11-23 03:35:29,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:35:29,887 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 31 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:29,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 604 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 12 Unchecked, 0.7s Time] [2021-11-23 03:35:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-23 03:35:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2021-11-23 03:35:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 72 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:35:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2021-11-23 03:35:29,902 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 18 [2021-11-23 03:35:29,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:29,903 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2021-11-23 03:35:29,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2021-11-23 03:35:29,903 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2021-11-23 03:35:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 03:35:29,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:29,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:29,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:35:30,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:30,108 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:30,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:30,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1871003678, now seen corresponding path program 1 times [2021-11-23 03:35:30,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:30,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673884571] [2021-11-23 03:35:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:30,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:30,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:30,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:30,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 03:35:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:31,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 03:35:31,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:31,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:31,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:32,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:32,094 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:32,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673884571] [2021-11-23 03:35:32,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673884571] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:32,094 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:32,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 03:35:32,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154364424] [2021-11-23 03:35:32,095 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:32,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:35:32,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:32,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:35:32,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:32,109 INFO L87 Difference]: Start difference. First operand 79 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2021-11-23 03:35:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:32,444 INFO L93 Difference]: Finished difference Result 116 states and 157 transitions. [2021-11-23 03:35:32,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:35:32,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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 18 [2021-11-23 03:35:32,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:32,449 INFO L225 Difference]: With dead ends: 116 [2021-11-23 03:35:32,449 INFO L226 Difference]: Without dead ends: 58 [2021-11-23 03:35:32,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:32,451 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 19 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:32,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 305 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 6 Unchecked, 0.3s Time] [2021-11-23 03:35:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-23 03:35:32,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-23 03:35:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.320754716981132) internal successors, (70), 53 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:35:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2021-11-23 03:35:32,457 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 18 [2021-11-23 03:35:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:32,457 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2021-11-23 03:35:32,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2021-11-23 03:35:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2021-11-23 03:35:32,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:35:32,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:32,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:32,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:35:32,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:32,665 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:32,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:32,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1889067684, now seen corresponding path program 1 times [2021-11-23 03:35:32,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:32,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207487634] [2021-11-23 03:35:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:32,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:32,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:32,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:32,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 03:35:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:33,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 03:35:33,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:34,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:34,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:34,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:34,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207487634] [2021-11-23 03:35:34,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207487634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:34,768 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:34,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 03:35:34,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575346906] [2021-11-23 03:35:34,769 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:34,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:35:34,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:34,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:35:34,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:34,770 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2021-11-23 03:35:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:34,876 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2021-11-23 03:35:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:35:34,876 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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 19 [2021-11-23 03:35:34,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:34,877 INFO L225 Difference]: With dead ends: 69 [2021-11-23 03:35:34,878 INFO L226 Difference]: Without dead ends: 62 [2021-11-23 03:35:34,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:34,879 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 18 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:34,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 246 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 7 Unchecked, 0.1s Time] [2021-11-23 03:35:34,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-23 03:35:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-11-23 03:35:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 53 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:35:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2021-11-23 03:35:34,885 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 19 [2021-11-23 03:35:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:34,886 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2021-11-23 03:35:34,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2021-11-23 03:35:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2021-11-23 03:35:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:35:34,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:34,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:34,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-23 03:35:35,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:35,106 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:35,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:35,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1417522822, now seen corresponding path program 1 times [2021-11-23 03:35:35,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:35,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304677275] [2021-11-23 03:35:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:35,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:35,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:35,111 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:35,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 03:35:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:36,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 03:35:36,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:37,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:37,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:39,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:35:39,035 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:35:39,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304677275] [2021-11-23 03:35:39,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304677275] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:39,035 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:39,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-23 03:35:39,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778517390] [2021-11-23 03:35:39,035 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:39,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:35:39,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:35:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:35:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:35:39,037 INFO L87 Difference]: Start difference. First operand 58 states and 73 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2021-11-23 03:35:43,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:45,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:47,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:49,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:51,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:53,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:54,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:56,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:58,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:58,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:58,795 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2021-11-23 03:35:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:35:58,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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 19 [2021-11-23 03:35:58,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:58,839 INFO L225 Difference]: With dead ends: 65 [2021-11-23 03:35:58,840 INFO L226 Difference]: Without dead ends: 61 [2021-11-23 03:35:58,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:35:58,841 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 52 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:58,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 211 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 6 Unknown, 0 Unchecked, 18.9s Time] [2021-11-23 03:35:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-23 03:35:58,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2021-11-23 03:35:58,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 53 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:35:58,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2021-11-23 03:35:58,847 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 19 [2021-11-23 03:35:58,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:58,848 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2021-11-23 03:35:58,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2021-11-23 03:35:58,848 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2021-11-23 03:35:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:35:58,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:58,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:58,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 03:35:59,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:35:59,050 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:59,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:59,050 INFO L85 PathProgramCache]: Analyzing trace with hash 992042301, now seen corresponding path program 1 times [2021-11-23 03:35:59,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:35:59,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816724779] [2021-11-23 03:35:59,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:59,051 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:35:59,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:35:59,053 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:35:59,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 03:35:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:00,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 03:36:00,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:00,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2021-11-23 03:36:00,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2021-11-23 03:36:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:01,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:36:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:02,982 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:36:02,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816724779] [2021-11-23 03:36:02,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816724779] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:02,982 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:02,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-23 03:36:02,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439015834] [2021-11-23 03:36:02,983 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:02,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 03:36:02,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:36:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 03:36:02,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-23 03:36:02,984 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2021-11-23 03:36:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:03,326 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2021-11-23 03:36:03,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:36:03,326 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 20 [2021-11-23 03:36:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:03,327 INFO L225 Difference]: With dead ends: 62 [2021-11-23 03:36:03,327 INFO L226 Difference]: Without dead ends: 46 [2021-11-23 03:36:03,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:36:03,329 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 1 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:03,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 357 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 22 Unchecked, 0.1s Time] [2021-11-23 03:36:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-23 03:36:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-23 03:36:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:36:03,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2021-11-23 03:36:03,337 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 20 [2021-11-23 03:36:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:03,340 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-11-23 03:36:03,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2021-11-23 03:36:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2021-11-23 03:36:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:36:03,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:03,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:03,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:03,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:36:03,566 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:36:03,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1381153585, now seen corresponding path program 1 times [2021-11-23 03:36:03,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:36:03,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668378238] [2021-11-23 03:36:03,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:03,567 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:36:03,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:36:03,569 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:36:03,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 03:36:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:04,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:36:04,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:04,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:36:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:05,126 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:36:05,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668378238] [2021-11-23 03:36:05,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668378238] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:05,126 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:05,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 03:36:05,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199106688] [2021-11-23 03:36:05,127 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:05,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:36:05,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:36:05,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:36:05,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:36:05,129 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:36:05,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:05,142 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-11-23 03:36:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:36:05,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-11-23 03:36:05,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:05,144 INFO L225 Difference]: With dead ends: 46 [2021-11-23 03:36:05,144 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:36:05,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:36:05,148 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:05,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2021-11-23 03:36:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:36:05,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:36:05,150 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) [2021-11-23 03:36:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:36:05,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-11-23 03:36:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:05,151 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:36:05,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:36:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:36:05,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:36:05,153 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:36:05,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:05,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:36:05,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:36:05,947 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2021-11-23 03:36:05,947 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2021-11-23 03:36:05,948 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2021-11-23 03:36:05,948 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-23 03:36:05,948 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-11-23 03:36:05,948 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-11-23 03:36:05,948 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-23 03:36:05,948 INFO L861 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2021-11-23 03:36:05,948 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2021-11-23 03:36:05,948 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2021-11-23 03:36:05,948 INFO L854 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-11-23 03:36:05,949 INFO L858 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2021-11-23 03:36:05,950 INFO L861 garLoopResultBuilder]: At program point L235(lines 217 236) the Hoare annotation is: true [2021-11-23 03:36:05,950 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-11-23 03:36:05,950 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-23 03:36:05,950 INFO L854 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= (fp.sub roundNearestTiesToEven (fp.neg ~pi_o_4~0) ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000.0)))) |ULTIMATE.start___ieee754_atan2f_#res#1|) (= ~pi_o_4~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 4000000000.0)))) (= |ULTIMATE.start___ieee754_atan2f_~iy~0#1| (_ bv2139095040 32)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 03:36:05,950 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-23 03:36:05,950 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-11-23 03:36:05,950 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2021-11-23 03:36:05,950 INFO L858 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-23 03:36:05,951 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= ~pi_o_4~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 4000000000.0)))) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 1.0)) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp.div currentRoundingMode .cse1 (_ +zero 8 24))) (= (fp.div currentRoundingMode (fp.neg .cse1) (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= |ULTIMATE.start___ieee754_atan2f_~hx~1#1| .cse0)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse2 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5|) (_ bv0 32))) (.cse3 ((_ to_fp 8 24) currentRoundingMode 1.0))) (and (= (bvand (_ bv2147483647 32) .cse2) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|) (= (fp.div currentRoundingMode .cse3 (_ +zero 8 24)) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (= (fp.div currentRoundingMode (fp.neg .cse3) (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~y#1|))))) [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 233) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-23 03:36:05,952 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 03:36:05,953 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-11-23 03:36:05,953 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2021-11-23 03:36:05,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 231) no Hoare annotation was computed. [2021-11-23 03:36:05,953 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-23 03:36:05,953 INFO L858 garLoopResultBuilder]: For program point L231(line 231) no Hoare annotation was computed. [2021-11-23 03:36:05,953 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2021-11-23 03:36:05,953 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2021-11-23 03:36:05,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:36:05,954 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2021-11-23 03:36:05,954 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2021-11-23 03:36:05,954 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2021-11-23 03:36:05,954 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (exists ((currentRoundingMode RoundingMode)) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 1.0))) (and (= (fp.div currentRoundingMode .cse0 (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~x#1|) (= (fp.div currentRoundingMode (fp.neg .cse0) (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~y#1|)))) (= ~pi_o_4~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 4000000000.0)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 03:36:05,954 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2021-11-23 03:36:05,954 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-23 03:36:05,954 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-23 03:36:05,954 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2021-11-23 03:36:05,955 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-23 03:36:05,955 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2021-11-23 03:36:05,955 INFO L858 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2021-11-23 03:36:05,955 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-11-23 03:36:05,955 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2021-11-23 03:36:05,955 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2021-11-23 03:36:05,955 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-11-23 03:36:05,955 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-11-23 03:36:05,956 INFO L861 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2021-11-23 03:36:05,956 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-11-23 03:36:05,956 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2021-11-23 03:36:05,956 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-11-23 03:36:05,956 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2021-11-23 03:36:05,956 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2021-11-23 03:36:05,956 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2021-11-23 03:36:05,956 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2021-11-23 03:36:05,956 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-11-23 03:36:05,957 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2021-11-23 03:36:05,960 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:05,962 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:36:05,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,973 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,977 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,979 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,979 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,980 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,980 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,981 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,981 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,982 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,982 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,986 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,987 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,987 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,987 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,987 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,987 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,988 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:05,993 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:05,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:05,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:05,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:36:05 BoogieIcfgContainer [2021-11-23 03:36:05,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:36:05,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:36:05,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:36:05,999 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:36:05,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:15" (3/4) ... [2021-11-23 03:36:06,002 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:36:06,008 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-23 03:36:06,009 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-11-23 03:36:06,017 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 03:36:06,017 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 03:36:06,018 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 03:36:06,019 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:36:06,042 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x && ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y)) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/4000000000))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 03:36:06,043 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/4000000000))) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22 : bv32, currentRoundingMode : FloatRoundingMode :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32][22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32, currentRoundingMode : FloatRoundingMode :: (~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix && ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0])) && ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) [2021-11-23 03:36:06,043 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(pi_o_4), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) == \result) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/4000000000))) && iy == 2139095040bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 03:36:06,096 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:36:06,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:36:06,098 INFO L158 Benchmark]: Toolchain (without parser) took 61958.65ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 47.1MB in the beginning and 41.4MB in the end (delta: 5.7MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2021-11-23 03:36:06,098 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:36:06,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.76ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 45.2MB in the end (delta: 1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 03:36:06,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.66ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 42.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:36:06,100 INFO L158 Benchmark]: Boogie Preprocessor took 98.01ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 40.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:36:06,101 INFO L158 Benchmark]: RCFGBuilder took 10981.53ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 40.1MB in the beginning and 54.0MB in the end (delta: -13.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2021-11-23 03:36:06,101 INFO L158 Benchmark]: TraceAbstraction took 50257.63ms. Allocated memory is still 88.1MB. Free memory was 53.6MB in the beginning and 49.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2021-11-23 03:36:06,102 INFO L158 Benchmark]: Witness Printer took 98.50ms. Allocated memory is still 88.1MB. Free memory was 49.4MB in the beginning and 41.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:36:06,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.76ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 45.2MB in the end (delta: 1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.66ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 42.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.01ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 40.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 10981.53ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 40.1MB in the beginning and 54.0MB in the end (delta: -13.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 50257.63ms. Allocated memory is still 88.1MB. Free memory was 53.6MB in the beginning and 49.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 98.50ms. Allocated memory is still 88.1MB. Free memory was 49.4MB in the beginning and 41.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,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[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,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[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 231]: 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 3 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 216 SdHoareTripleChecker+Valid, 21.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 4083 SdHoareTripleChecker+Invalid, 20.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 108 IncrementalHoareTripleChecker+Unchecked, 3202 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 167 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 881 mSDtfsCounter, 167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 266 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 66 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 37 PreInvPairs, 41 NumberOfFragments, 187 HoareAnnotationTreeSize, 37 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 69 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 8.6s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 326 ConstructedInterpolants, 108 QuantifiedInterpolants, 3272 SizeOfPredicates, 80 NumberOfNonLiveVariables, 1115 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant [2021-11-23 03:36:06,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,138 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x && ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y)) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/4000000000))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 120]: Loop Invariant [2021-11-23 03:36:06,142 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,142 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,142 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(pi_o_4), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) == \result) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/4000000000))) && iy == 2139095040bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2021-11-23 03:36:06,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,152 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22,QUANTIFIED] [2021-11-23 03:36:06,158 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:36:06,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-23 03:36:06,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:36:06,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/4000000000))) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22 : bv32, currentRoundingMode : FloatRoundingMode :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32][22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_22][0bv32])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32, currentRoundingMode : FloatRoundingMode :: (~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix && ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0])) && ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) RESULT: Ultimate proved your program to be correct! [2021-11-23 03:36:06,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4ff5e7-0679-4fff-af5a-8d7665296a54/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE