./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P --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 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:12:05,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:12:05,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:12:05,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:12:05,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:12:05,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:12:05,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:12:05,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:12:05,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:12:05,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:12:05,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:12:05,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:12:05,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:12:05,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:12:05,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:12:05,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:12:05,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:12:05,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:12:05,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:12:05,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:12:05,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:12:05,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:12:05,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:12:05,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:12:05,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:12:05,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:12:05,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:12:05,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:12:05,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:12:05,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:12:05,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:12:05,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:12:05,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:12:05,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:12:05,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:12:05,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:12:05,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:12:05,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:12:05,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:12:05,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:12:05,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:12:05,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:12:06,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:12:06,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:12:06,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:12:06,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:12:06,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:12:06,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:12:06,037 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:12:06,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:12:06,037 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:12:06,037 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:12:06,038 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:12:06,039 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:12:06,039 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:12:06,039 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:12:06,039 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:12:06,040 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:12:06,040 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:12:06,040 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:12:06,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:12:06,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:12:06,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:12:06,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:12:06,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:12:06,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:12:06,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:12:06,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:12:06,044 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:12:06,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:12:06,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:12:06,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:12:06,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:12:06,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:12:06,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:12:06,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:12:06,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:12:06,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:12:06,047 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:12:06,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:12:06,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:12:06,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:12:06,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:12:06,048 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_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda [2021-11-21 01:12:06,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:12:06,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:12:06,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:12:06,347 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:12:06,348 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:12:06,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-21 01:12:06,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/617bc145d/01e4a292f64b4598a047ff6003097b03/FLAG749cfb3f8 [2021-11-21 01:12:06,960 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:12:06,961 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-21 01:12:06,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/617bc145d/01e4a292f64b4598a047ff6003097b03/FLAG749cfb3f8 [2021-11-21 01:12:07,245 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/617bc145d/01e4a292f64b4598a047ff6003097b03 [2021-11-21 01:12:07,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:12:07,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:12:07,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:12:07,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:12:07,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:12:07,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:07,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d92fd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07, skipping insertion in model container [2021-11-21 01:12:07,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:07,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:12:07,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:12:07,701 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_f943ae23-1784-42be-945f-e2614b536971/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-21 01:12:07,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:12:07,756 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:12:07,848 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_f943ae23-1784-42be-945f-e2614b536971/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-21 01:12:07,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:12:07,897 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:12:07,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07 WrapperNode [2021-11-21 01:12:07,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:12:07,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:12:07,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:12:07,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:12:07,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:07,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,024 INFO L137 Inliner]: procedures = 26, calls = 491, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1124 [2021-11-21 01:12:08,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:12:08,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:12:08,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:12:08,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:12:08,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:12:08,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:12:08,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:12:08,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:12:08,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (1/1) ... [2021-11-21 01:12:08,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:12:08,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:12:08,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:12:08,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:12:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2021-11-21 01:12:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2021-11-21 01:12:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:12:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:12:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 01:12:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:12:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 01:12:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2021-11-21 01:12:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2021-11-21 01:12:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-21 01:12:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-21 01:12:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:12:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-21 01:12:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-21 01:12:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-21 01:12:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:12:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:12:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:12:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:12:08,446 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:12:08,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:12:09,478 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:12:09,747 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:12:09,748 INFO L301 CfgBuilder]: Removed 59 assume(true) statements. [2021-11-21 01:12:09,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:12:09 BoogieIcfgContainer [2021-11-21 01:12:09,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:12:09,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:12:09,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:12:09,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:12:09,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:12:07" (1/3) ... [2021-11-21 01:12:09,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b256448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:12:09, skipping insertion in model container [2021-11-21 01:12:09,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:07" (2/3) ... [2021-11-21 01:12:09,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b256448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:12:09, skipping insertion in model container [2021-11-21 01:12:09,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:12:09" (3/3) ... [2021-11-21 01:12:09,767 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0310.c [2021-11-21 01:12:09,776 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:12:09,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:12:09,824 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:12:09,831 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 [2021-11-21 01:12:09,832 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:12:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 150 states have (on average 1.68) internal successors, (252), 151 states have internal predecessors, (252), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-21 01:12:09,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:12:09,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:09,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:09,869 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:12:09,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:09,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1512247510, now seen corresponding path program 1 times [2021-11-21 01:12:09,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:09,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966494694] [2021-11-21 01:12:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:09,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:12:10,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:10,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966494694] [2021-11-21 01:12:10,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966494694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:10,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:10,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:12:10,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724105252] [2021-11-21 01:12:10,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:10,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:12:10,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:10,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:12:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:12:10,255 INFO L87 Difference]: Start difference. First operand has 168 states, 150 states have (on average 1.68) internal successors, (252), 151 states have internal predecessors, (252), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:12:10,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:10,484 INFO L93 Difference]: Finished difference Result 335 states and 563 transitions. [2021-11-21 01:12:10,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:12:10,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:12:10,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:10,500 INFO L225 Difference]: With dead ends: 335 [2021-11-21 01:12:10,501 INFO L226 Difference]: Without dead ends: 166 [2021-11-21 01:12:10,511 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 [2021-11-21 01:12:10,516 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:12:10,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:12:10,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-21 01:12:10,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-21 01:12:10,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 149 states have (on average 1.395973154362416) internal successors, (208), 149 states have internal predecessors, (208), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-21 01:12:10,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 232 transitions. [2021-11-21 01:12:10,569 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 232 transitions. Word has length 8 [2021-11-21 01:12:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:10,569 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 232 transitions. [2021-11-21 01:12:10,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:12:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 232 transitions. [2021-11-21 01:12:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 01:12:10,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:10,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:10,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:12:10,571 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:12:10,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:10,572 INFO L85 PathProgramCache]: Analyzing trace with hash 678900840, now seen corresponding path program 1 times [2021-11-21 01:12:10,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:10,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103378537] [2021-11-21 01:12:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:10,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:12:10,764 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:12:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:12:10,945 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:12:10,945 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:12:10,947 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:12:10,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:12:10,952 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 01:12:10,955 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:12:11,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:12:11 BoogieIcfgContainer [2021-11-21 01:12:11,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:12:11,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:12:11,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:12:11,003 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:12:11,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:12:09" (3/4) ... [2021-11-21 01:12:11,006 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 01:12:11,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:12:11,008 INFO L158 Benchmark]: Toolchain (without parser) took 3746.89ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 69.9MB in the beginning and 99.3MB in the end (delta: -29.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-21 01:12:11,008 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:12:11,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.47ms. Allocated memory is still 113.2MB. Free memory was 69.7MB in the beginning and 67.9MB in the end (delta: 1.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-21 01:12:11,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.87ms. Allocated memory is still 113.2MB. Free memory was 67.9MB in the beginning and 60.8MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:12:11,010 INFO L158 Benchmark]: Boogie Preprocessor took 99.71ms. Allocated memory is still 113.2MB. Free memory was 60.8MB in the beginning and 54.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 01:12:11,011 INFO L158 Benchmark]: RCFGBuilder took 1612.95ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 54.1MB in the beginning and 94.8MB in the end (delta: -40.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2021-11-21 01:12:11,011 INFO L158 Benchmark]: TraceAbstraction took 1249.25ms. Allocated memory is still 151.0MB. Free memory was 94.8MB in the beginning and 100.4MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:12:11,012 INFO L158 Benchmark]: Witness Printer took 3.85ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:12:11,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.47ms. Allocated memory is still 113.2MB. Free memory was 69.7MB in the beginning and 67.9MB in the end (delta: 1.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.87ms. Allocated memory is still 113.2MB. Free memory was 67.9MB in the beginning and 60.8MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.71ms. Allocated memory is still 113.2MB. Free memory was 60.8MB in the beginning and 54.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1612.95ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 54.1MB in the beginning and 94.8MB in the end (delta: -40.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1249.25ms. Allocated memory is still 151.0MB. Free memory was 94.8MB in the beginning and 100.4MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.85ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.0MB). 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: 613]: 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 64, overapproximation of someUnaryDOUBLEoperation at line 500, overapproximation of bitwiseAnd at line 579, overapproximation of someBinaryArithmeticFLOAToperation at line 584. Possible FailurePath: [L18] static const float huge_floor = 1.0e30; [L86-L88] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L158] static const int init_jk_krempio[] = {4, 7, 9}; [L160-L164] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L166-L168] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L343-L361] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L363-L369] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L371-L380] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L500-L503] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L527-L530] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L567] static const float one_cos = 1.0; [L608] float x = 0.0f / 0.0f; [L609] CALL, EXPR cos_float(x) [L570] float y[2], z = 0.0; [L571] __int32_t n, ix; VAL [\old(x)=1000000000000000000000000000002, C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_cos=1, one_kcos=1, one_krempio=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000002, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L574] ieee_float_shape_type gf_u; [L575] gf_u.value = (x) [L576] EXPR gf_u.word [L576] (ix) = gf_u.word [L579] ix &= 0x7fffffff VAL [\old(x)=1000000000000000000000000000002, C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_cos=1, one_kcos=1, one_krempio=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000002, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L580] COND FALSE !(ix <= 0x3f490fd8) VAL [\old(x)=1000000000000000000000000000002, C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_cos=1, one_kcos=1, one_krempio=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000002, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L583] COND TRUE !((ix) < 0x7f800000L) [L584] return x - x; [L584] return x - x; VAL [\old(x)=1000000000000000000000000000002, C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_cos=1, one_kcos=1, one_krempio=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000002, z=0, zero_krempio=0, zero_rempio=0] [L609] RET, EXPR cos_float(x) [L609] float res = cos_float(x); [L612] CALL, EXPR isnan_float(res) [L64] return x != x; [L612] RET, EXPR isnan_float(res) [L612] COND TRUE !isnan_float(res) [L613] reach_error() VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_cos=1, one_kcos=1, one_krempio=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, res=1000000000000000000000000000001, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000002, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 168 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, 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, 182 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 182 mSDtfsCounter, 52 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=168occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2021-11-21 01:12:11,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/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_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P --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 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:12:13,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:12:13,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:12:13,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:12:13,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:12:13,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:12:13,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:12:13,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:12:13,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:12:13,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:12:13,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:12:13,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:12:13,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:12:13,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:12:13,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:12:13,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:12:13,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:12:13,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:12:13,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:12:13,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:12:13,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:12:13,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:12:13,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:12:13,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:12:13,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:12:13,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:12:13,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:12:13,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:12:13,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:12:13,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:12:13,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:12:13,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:12:13,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:12:13,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:12:13,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:12:13,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:12:13,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:12:13,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:12:13,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:12:13,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:12:13,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:12:13,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:12:13,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:12:13,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:12:13,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:12:13,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:12:13,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:12:13,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:12:13,641 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:12:13,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:12:13,642 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:12:13,642 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:12:13,643 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:12:13,643 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:12:13,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:12:13,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:12:13,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:12:13,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:12:13,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:12:13,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:12:13,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:12:13,646 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:12:13,646 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:12:13,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:12:13,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:12:13,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:12:13,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:12:13,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:12:13,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:12:13,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:12:13,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:12:13,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:12:13,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:12:13,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:12:13,648 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:12:13,649 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:12:13,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:12:13,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:12:13,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:12:13,650 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_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda [2021-11-21 01:12:14,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:12:14,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:12:14,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:12:14,053 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:12:14,054 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:12:14,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-21 01:12:14,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/38552e001/fbd07925078e43f3b29ac3e3e768b986/FLAG7a3c9a75e [2021-11-21 01:12:14,743 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:12:14,743 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-21 01:12:14,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/38552e001/fbd07925078e43f3b29ac3e3e768b986/FLAG7a3c9a75e [2021-11-21 01:12:15,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/data/38552e001/fbd07925078e43f3b29ac3e3e768b986 [2021-11-21 01:12:15,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:12:15,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:12:15,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:12:15,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:12:15,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:12:15,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281be261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15, skipping insertion in model container [2021-11-21 01:12:15,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:12:15,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:12:15,416 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_f943ae23-1784-42be-945f-e2614b536971/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-21 01:12:15,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:12:15,465 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:12:15,589 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_f943ae23-1784-42be-945f-e2614b536971/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-21 01:12:15,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:12:15,643 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:12:15,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15 WrapperNode [2021-11-21 01:12:15,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:12:15,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:12:15,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:12:15,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:12:15,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,800 INFO L137 Inliner]: procedures = 30, calls = 491, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1122 [2021-11-21 01:12:15,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:12:15,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:12:15,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:12:15,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:12:15,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:12:15,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:12:15,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:12:15,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:12:15,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (1/1) ... [2021-11-21 01:12:15,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:12:16,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:12:16,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:12:16,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:12:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2021-11-21 01:12:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2021-11-21 01:12:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:12:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:12:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-21 01:12:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:12:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-21 01:12:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 01:12:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2021-11-21 01:12:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2021-11-21 01:12:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-21 01:12:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-21 01:12:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-21 01:12:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-21 01:12:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-21 01:12:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-21 01:12:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:12:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:12:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 01:12:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:12:16,239 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:12:16,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:12:51,295 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:12:51,306 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:12:51,306 INFO L301 CfgBuilder]: Removed 59 assume(true) statements. [2021-11-21 01:12:51,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:12:51 BoogieIcfgContainer [2021-11-21 01:12:51,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:12:51,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:12:51,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:12:51,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:12:51,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:12:15" (1/3) ... [2021-11-21 01:12:51,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75940214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:12:51, skipping insertion in model container [2021-11-21 01:12:51,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:12:15" (2/3) ... [2021-11-21 01:12:51,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75940214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:12:51, skipping insertion in model container [2021-11-21 01:12:51,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:12:51" (3/3) ... [2021-11-21 01:12:51,321 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0310.c [2021-11-21 01:12:51,329 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:12:51,329 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:12:51,376 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:12:51,383 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 [2021-11-21 01:12:51,383 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:12:51,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 227 states have (on average 1.6607929515418502) internal successors, (377), 228 states have internal predecessors, (377), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-21 01:12:51,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 01:12:51,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:51,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:51,424 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:12:51,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:51,430 INFO L85 PathProgramCache]: Analyzing trace with hash -709379349, now seen corresponding path program 1 times [2021-11-21 01:12:51,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:12:51,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215420281] [2021-11-21 01:12:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:51,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:12:51,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:12:51,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:12:51,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:12:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:52,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:12:52,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:12:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:12:52,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:12:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:12:52,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:12:52,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215420281] [2021-11-21 01:12:52,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215420281] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:52,899 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:52,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:12:52,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580353262] [2021-11-21 01:12:52,902 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:52,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:12:52,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:12:52,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:12:52,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:12:52,936 INFO L87 Difference]: Start difference. First operand has 245 states, 227 states have (on average 1.6607929515418502) internal successors, (377), 228 states have internal predecessors, (377), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) 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) [2021-11-21 01:12:52,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:52,996 INFO L93 Difference]: Finished difference Result 488 states and 812 transitions. [2021-11-21 01:12:52,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:12:52,998 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 [2021-11-21 01:12:52,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:53,009 INFO L225 Difference]: With dead ends: 488 [2021-11-21 01:12:53,009 INFO L226 Difference]: Without dead ends: 242 [2021-11-21 01:12:53,016 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 [2021-11-21 01:12:53,019 INFO L933 BasicCegarLoop]: 341 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, 341 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 [2021-11-21 01:12:53,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:12:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-21 01:12:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-11-21 01:12:53,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 225 states have (on average 1.3955555555555557) internal successors, (314), 225 states have internal predecessors, (314), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-21 01:12:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2021-11-21 01:12:53,080 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 338 transitions. Word has length 10 [2021-11-21 01:12:53,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:53,081 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-11-21 01:12:53,081 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) [2021-11-21 01:12:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 338 transitions. [2021-11-21 01:12:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:12:53,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:53,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:53,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:12:53,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:12:53,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:12:53,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:53,297 INFO L85 PathProgramCache]: Analyzing trace with hash 759304673, now seen corresponding path program 1 times [2021-11-21 01:12:53,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:12:53,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646101456] [2021-11-21 01:12:53,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:53,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:12:53,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:12:53,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:12:53,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:12:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:54,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:12:54,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:12:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:12:55,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:12:55,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:12:55,902 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:12:55,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646101456] [2021-11-21 01:12:55,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646101456] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:55,903 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:55,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 01:12:55,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859424794] [2021-11-21 01:12:55,903 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:55,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:12:55,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:12:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:12:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:12:55,906 INFO L87 Difference]: Start difference. First operand 242 states and 338 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:12:58,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:00,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:02,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:05,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:07,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:10,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:12,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:14,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:16,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:17,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:20,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:22,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:25,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:27,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:29,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:31,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:33,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:35,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:37,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:39,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:41,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:43,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:46,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:48,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:50,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:52,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:57,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:00,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:02,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:06,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:11,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:13,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:15,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:16,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:24,105 INFO L93 Difference]: Finished difference Result 420 states and 591 transitions. [2021-11-21 01:14:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:14:24,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 01:14:24,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:24,119 INFO L225 Difference]: With dead ends: 420 [2021-11-21 01:14:24,119 INFO L226 Difference]: Without dead ends: 415 [2021-11-21 01:14:24,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-21 01:14:24,121 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 291 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 9 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:24,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2056 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 462 Invalid, 25 Unknown, 0 Unchecked, 87.9s Time] [2021-11-21 01:14:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-11-21 01:14:24,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 242. [2021-11-21 01:14:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 225 states have (on average 1.3911111111111112) internal successors, (313), 225 states have internal predecessors, (313), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-21 01:14:24,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 337 transitions. [2021-11-21 01:14:24,154 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 337 transitions. Word has length 11 [2021-11-21 01:14:24,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:24,155 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 337 transitions. [2021-11-21 01:14:24,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:14:24,155 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 337 transitions. [2021-11-21 01:14:24,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:14:24,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:24,157 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] [2021-11-21 01:14:24,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-21 01:14:24,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:14:24,364 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:14:24,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:24,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1245430414, now seen corresponding path program 1 times [2021-11-21 01:14:24,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:14:24,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979509158] [2021-11-21 01:14:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:24,366 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:14:24,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:14:24,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:14:24,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 01:14:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:25,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:14:25,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:14:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:25,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:14:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:26,336 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:14:26,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979509158] [2021-11-21 01:14:26,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979509158] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:26,337 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:26,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 01:14:26,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086523046] [2021-11-21 01:14:26,337 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:26,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:14:26,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:14:26,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:14:26,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:14:26,339 INFO L87 Difference]: Start difference. First operand 242 states and 337 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2021-11-21 01:14:26,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:26,393 INFO L93 Difference]: Finished difference Result 261 states and 358 transitions. [2021-11-21 01:14:26,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:14:26,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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 20 [2021-11-21 01:14:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:26,397 INFO L225 Difference]: With dead ends: 261 [2021-11-21 01:14:26,397 INFO L226 Difference]: Without dead ends: 240 [2021-11-21 01:14:26,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:14:26,401 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 0 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:26,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-11-21 01:14:26,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-21 01:14:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-11-21 01:14:26,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 224 states have internal predecessors, (311), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-21 01:14:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 333 transitions. [2021-11-21 01:14:26,439 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 333 transitions. Word has length 20 [2021-11-21 01:14:26,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:26,439 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 333 transitions. [2021-11-21 01:14:26,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2021-11-21 01:14:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 333 transitions. [2021-11-21 01:14:26,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 01:14:26,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:26,442 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] [2021-11-21 01:14:26,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:14:26,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:14:26,656 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:14:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:26,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1362280166, now seen corresponding path program 1 times [2021-11-21 01:14:26,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:14:26,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763615020] [2021-11-21 01:14:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:26,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:14:26,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:14:26,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:14:26,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 01:14:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:27,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-21 01:14:27,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:14:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:28,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:14:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:29,093 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:14:29,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763615020] [2021-11-21 01:14:29,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763615020] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:29,094 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:29,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 01:14:29,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456426482] [2021-11-21 01:14:29,094 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:29,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:14:29,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:14:29,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:14:29,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:14:29,096 INFO L87 Difference]: Start difference. First operand 240 states and 333 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 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) [2021-11-21 01:14:30,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:30,649 INFO L93 Difference]: Finished difference Result 304 states and 416 transitions. [2021-11-21 01:14:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:14:30,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 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 21 [2021-11-21 01:14:30,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:30,653 INFO L225 Difference]: With dead ends: 304 [2021-11-21 01:14:30,653 INFO L226 Difference]: Without dead ends: 261 [2021-11-21 01:14:30,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:14:30,655 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 219 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:30,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1736 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 42 Unchecked, 1.5s Time] [2021-11-21 01:14:30,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-21 01:14:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 240. [2021-11-21 01:14:30,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 224 states have (on average 1.3839285714285714) internal successors, (310), 224 states have internal predecessors, (310), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-21 01:14:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 332 transitions. [2021-11-21 01:14:30,672 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 332 transitions. Word has length 21 [2021-11-21 01:14:30,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:30,672 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 332 transitions. [2021-11-21 01:14:30,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 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) [2021-11-21 01:14:30,673 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 332 transitions. [2021-11-21 01:14:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:14:30,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:30,681 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, 1] [2021-11-21 01:14:30,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:14:30,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:14:30,904 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:14:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash -154214555, now seen corresponding path program 1 times [2021-11-21 01:14:30,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:14:30,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766874703] [2021-11-21 01:14:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:30,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:14:30,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:14:30,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:14:30,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 01:14:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:32,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:14:32,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:14:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:32,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:14:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:32,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:14:32,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766874703] [2021-11-21 01:14:32,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766874703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:32,441 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:32,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 01:14:32,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007321373] [2021-11-21 01:14:32,441 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:32,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:14:32,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:14:32,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:14:32,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:14:32,443 INFO L87 Difference]: Start difference. First operand 240 states and 332 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-11-21 01:14:32,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:32,618 INFO L93 Difference]: Finished difference Result 287 states and 390 transitions. [2021-11-21 01:14:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:14:32,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 24 [2021-11-21 01:14:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:32,621 INFO L225 Difference]: With dead ends: 287 [2021-11-21 01:14:32,622 INFO L226 Difference]: Without dead ends: 248 [2021-11-21 01:14:32,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:14:32,623 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 29 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:32,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 957 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:14:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-21 01:14:32,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 241. [2021-11-21 01:14:32,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 225 states have (on average 1.3777777777777778) internal successors, (310), 225 states have internal predecessors, (310), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-21 01:14:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 332 transitions. [2021-11-21 01:14:32,636 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 332 transitions. Word has length 24 [2021-11-21 01:14:32,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:32,636 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 332 transitions. [2021-11-21 01:14:32,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-11-21 01:14:32,637 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 332 transitions. [2021-11-21 01:14:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 01:14:32,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:32,638 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:32,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:14:32,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:14:32,860 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:14:32,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:32,861 INFO L85 PathProgramCache]: Analyzing trace with hash 977166461, now seen corresponding path program 1 times [2021-11-21 01:14:32,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:14:32,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052414807] [2021-11-21 01:14:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:32,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:14:32,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:14:32,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:14:32,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 01:14:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:34,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-21 01:14:34,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:14:34,917 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 30 treesize of output 26 [2021-11-21 01:14:34,997 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 52 treesize of output 28 [2021-11-21 01:14:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:35,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:14:37,776 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 82 treesize of output 70 [2021-11-21 01:14:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:55,178 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:14:55,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052414807] [2021-11-21 01:14:55,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052414807] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:55,179 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:55,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 18 [2021-11-21 01:14:55,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629086434] [2021-11-21 01:14:55,179 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:55,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:14:55,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:14:55,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:14:55,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:14:55,181 INFO L87 Difference]: Start difference. First operand 241 states and 332 transitions. Second operand has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:14:57,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:58,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:59,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:02,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:04,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:07,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:09,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:12,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:14,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:16,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:18,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:20,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:22,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:24,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:26,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:28,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:30,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:33,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:35,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:36,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:39,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:41,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:43,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:44,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:48,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:50,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:52,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:57,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:59,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:02,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:06,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:08,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:13,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:13,241 INFO L93 Difference]: Finished difference Result 455 states and 644 transitions. [2021-11-21 01:16:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 01:16:13,242 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-11-21 01:16:13,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:13,247 INFO L225 Difference]: With dead ends: 455 [2021-11-21 01:16:13,248 INFO L226 Difference]: Without dead ends: 449 [2021-11-21 01:16:13,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2021-11-21 01:16:13,250 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 423 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 19 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 612 IncrementalHoareTripleChecker+Unchecked, 77.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:13,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 3225 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 273 Invalid, 23 Unknown, 612 Unchecked, 77.0s Time] [2021-11-21 01:16:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-21 01:16:13,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 250. [2021-11-21 01:16:13,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 232 states have (on average 1.375) internal successors, (319), 234 states have internal predecessors, (319), 12 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (14), 11 states have call predecessors, (14), 12 states have call successors, (14) [2021-11-21 01:16:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 345 transitions. [2021-11-21 01:16:13,271 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 345 transitions. Word has length 30 [2021-11-21 01:16:13,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:13,272 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 345 transitions. [2021-11-21 01:16:13,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:13,272 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 345 transitions. [2021-11-21 01:16:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:16:13,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:13,275 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:13,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:13,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:16:13,484 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:16:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:13,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1708438715, now seen corresponding path program 1 times [2021-11-21 01:16:13,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:16:13,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509283800] [2021-11-21 01:16:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:13,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:16:13,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:16:13,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:16:13,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 01:16:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:14,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-21 01:16:14,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:15,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:16:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:16,014 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:16:16,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509283800] [2021-11-21 01:16:16,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509283800] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:16,014 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:16,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 01:16:16,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676928257] [2021-11-21 01:16:16,015 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:16,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:16:16,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:16:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:16:16,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:16:16,017 INFO L87 Difference]: Start difference. First operand 250 states and 345 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 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) [2021-11-21 01:16:16,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:16,256 INFO L93 Difference]: Finished difference Result 318 states and 435 transitions. [2021-11-21 01:16:16,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:16:16,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 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 31 [2021-11-21 01:16:16,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:16,259 INFO L225 Difference]: With dead ends: 318 [2021-11-21 01:16:16,259 INFO L226 Difference]: Without dead ends: 263 [2021-11-21 01:16:16,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:16:16,261 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 190 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:16,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 2401 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 38 Unchecked, 0.2s Time] [2021-11-21 01:16:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-11-21 01:16:16,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 245. [2021-11-21 01:16:16,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 227 states have (on average 1.3656387665198237) internal successors, (310), 229 states have internal predecessors, (310), 12 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (14), 11 states have call predecessors, (14), 12 states have call successors, (14) [2021-11-21 01:16:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 336 transitions. [2021-11-21 01:16:16,277 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 336 transitions. Word has length 31 [2021-11-21 01:16:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:16,278 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 336 transitions. [2021-11-21 01:16:16,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 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) [2021-11-21 01:16:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 336 transitions. [2021-11-21 01:16:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:16:16,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:16,280 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:16,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:16,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:16:16,500 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:16:16,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:16,501 INFO L85 PathProgramCache]: Analyzing trace with hash 769706407, now seen corresponding path program 1 times [2021-11-21 01:16:16,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:16:16,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187520800] [2021-11-21 01:16:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:16,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:16:16,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:16:16,502 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:16:16,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 01:16:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:18,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-21 01:16:18,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:18,936 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 30 treesize of output 26 [2021-11-21 01:16:19,000 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 52 treesize of output 28 [2021-11-21 01:16:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:19,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:16:21,129 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 82 treesize of output 70 [2021-11-21 01:16:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:37,504 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:16:37,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187520800] [2021-11-21 01:16:37,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187520800] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:37,504 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:37,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 18 [2021-11-21 01:16:37,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079812413] [2021-11-21 01:16:37,505 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:37,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:37,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:16:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=258, Unknown=1, NotChecked=0, Total=306 [2021-11-21 01:16:37,506 INFO L87 Difference]: Start difference. First operand 245 states and 336 transitions. Second operand has 18 states, 16 states have (on average 3.25) internal successors, (52), 18 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:40,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:42,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:45,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:47,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:49,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:51,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:52,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:55,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:57,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:59,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:01,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:03,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:05,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:07,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:09,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:11,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:13,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:16,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:19,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:26,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:28,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:30,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:35,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:37,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:39,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:39,375 INFO L93 Difference]: Finished difference Result 439 states and 614 transitions. [2021-11-21 01:17:39,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 01:17:39,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.25) internal successors, (52), 18 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2021-11-21 01:17:39,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:39,379 INFO L225 Difference]: With dead ends: 439 [2021-11-21 01:17:39,379 INFO L226 Difference]: Without dead ends: 433 [2021-11-21 01:17:39,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=103, Invalid=496, Unknown=1, NotChecked=0, Total=600 [2021-11-21 01:17:39,380 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 453 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 33 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 576 IncrementalHoareTripleChecker+Unchecked, 60.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:39,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 3083 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 244 Invalid, 20 Unknown, 576 Unchecked, 60.7s Time] [2021-11-21 01:17:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2021-11-21 01:17:39,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 245. [2021-11-21 01:17:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 227 states have (on average 1.3656387665198237) internal successors, (310), 229 states have internal predecessors, (310), 12 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (14), 11 states have call predecessors, (14), 12 states have call successors, (14) [2021-11-21 01:17:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 336 transitions. [2021-11-21 01:17:39,401 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 336 transitions. Word has length 31 [2021-11-21 01:17:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:39,401 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 336 transitions. [2021-11-21 01:17:39,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.25) internal successors, (52), 18 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 336 transitions. [2021-11-21 01:17:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:17:39,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:39,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:39,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-21 01:17:39,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:17:39,616 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:17:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:39,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1550816823, now seen corresponding path program 1 times [2021-11-21 01:17:39,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:17:39,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474441519] [2021-11-21 01:17:39,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:39,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:17:39,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:17:39,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:17:39,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 01:17:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:41,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:17:41,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:17:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:41,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:17:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:42,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:17:42,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474441519] [2021-11-21 01:17:42,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474441519] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:42,257 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:42,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 01:17:42,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090109426] [2021-11-21 01:17:42,258 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:42,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:17:42,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:17:42,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:17:42,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:17:42,259 INFO L87 Difference]: Start difference. First operand 245 states and 336 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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) [2021-11-21 01:17:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:42,279 INFO L93 Difference]: Finished difference Result 245 states and 336 transitions. [2021-11-21 01:17:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:17:42,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 33 [2021-11-21 01:17:42,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:42,280 INFO L225 Difference]: With dead ends: 245 [2021-11-21 01:17:42,280 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 01:17:42,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:17:42,282 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:42,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2021-11-21 01:17:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 01:17:42,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 01:17:42,283 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) [2021-11-21 01:17:42,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 01:17:42,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-11-21 01:17:42,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:42,283 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 01:17:42,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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) [2021-11-21 01:17:42,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 01:17:42,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 01:17:42,286 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:17:42,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-21 01:17:42,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:17:42,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 01:17:42,830 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 544) no Hoare annotation was computed. [2021-11-21 01:17:42,830 INFO L858 garLoopResultBuilder]: For program point L541-2(lines 541 544) no Hoare annotation was computed. [2021-11-21 01:17:42,831 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 535 539) no Hoare annotation was computed. [2021-11-21 01:17:42,831 INFO L861 garLoopResultBuilder]: At program point L535-2(lines 535 539) the Hoare annotation is: true [2021-11-21 01:17:42,831 INFO L858 garLoopResultBuilder]: For program point L535-3(lines 535 539) no Hoare annotation was computed. [2021-11-21 01:17:42,831 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 560) no Hoare annotation was computed. [2021-11-21 01:17:42,831 INFO L861 garLoopResultBuilder]: At program point __kernel_cosfENTRY(lines 532 565) the Hoare annotation is: true [2021-11-21 01:17:42,831 INFO L858 garLoopResultBuilder]: For program point L542(lines 542 543) no Hoare annotation was computed. [2021-11-21 01:17:42,831 INFO L858 garLoopResultBuilder]: For program point __kernel_cosfFINAL(lines 532 565) no Hoare annotation was computed. [2021-11-21 01:17:42,832 INFO L858 garLoopResultBuilder]: For program point L555-1(lines 555 559) no Hoare annotation was computed. [2021-11-21 01:17:42,832 INFO L861 garLoopResultBuilder]: At program point L555-2(lines 555 559) the Hoare annotation is: true [2021-11-21 01:17:42,832 INFO L858 garLoopResultBuilder]: For program point L555-3(lines 552 560) no Hoare annotation was computed. [2021-11-21 01:17:42,832 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 564) no Hoare annotation was computed. [2021-11-21 01:17:42,832 INFO L858 garLoopResultBuilder]: For program point __kernel_cosfEXIT(lines 532 565) no Hoare annotation was computed. [2021-11-21 01:17:42,832 INFO L858 garLoopResultBuilder]: For program point copysign_floatEXIT(lines 66 84) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 66 84) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L861 garLoopResultBuilder]: At program point copysign_floatENTRY(lines 66 84) the Hoare annotation is: true [2021-11-21 01:17:42,833 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 82) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 66 84) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 78 82) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L858 garLoopResultBuilder]: For program point copysign_floatFINAL(lines 66 84) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L858 garLoopResultBuilder]: For program point L68-1(lines 68 72) no Hoare annotation was computed. [2021-11-21 01:17:42,833 INFO L861 garLoopResultBuilder]: At program point L68-2(lines 68 72) the Hoare annotation is: true [2021-11-21 01:17:42,834 INFO L858 garLoopResultBuilder]: For program point L514-2(lines 514 517) no Hoare annotation was computed. [2021-11-21 01:17:42,834 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 508 512) no Hoare annotation was computed. [2021-11-21 01:17:42,834 INFO L861 garLoopResultBuilder]: At program point L508-2(lines 508 512) the Hoare annotation is: true [2021-11-21 01:17:42,834 INFO L858 garLoopResultBuilder]: For program point L508-3(lines 508 512) no Hoare annotation was computed. [2021-11-21 01:17:42,834 INFO L858 garLoopResultBuilder]: For program point __kernel_sinfEXIT(lines 505 525) no Hoare annotation was computed. [2021-11-21 01:17:42,835 INFO L858 garLoopResultBuilder]: For program point L521(lines 521 524) no Hoare annotation was computed. [2021-11-21 01:17:42,835 INFO L858 garLoopResultBuilder]: For program point L515(lines 515 516) no Hoare annotation was computed. [2021-11-21 01:17:42,835 INFO L861 garLoopResultBuilder]: At program point __kernel_sinfENTRY(lines 505 525) the Hoare annotation is: true [2021-11-21 01:17:42,835 INFO L858 garLoopResultBuilder]: For program point __kernel_sinfFINAL(lines 505 525) no Hoare annotation was computed. [2021-11-21 01:17:42,835 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 517) no Hoare annotation was computed. [2021-11-21 01:17:42,835 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-11-21 01:17:42,835 INFO L858 garLoopResultBuilder]: For program point L300(line 300) no Hoare annotation was computed. [2021-11-21 01:17:42,836 INFO L858 garLoopResultBuilder]: For program point L234(line 234) no Hoare annotation was computed. [2021-11-21 01:17:42,836 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 422) no Hoare annotation was computed. [2021-11-21 01:17:42,836 INFO L858 garLoopResultBuilder]: For program point L302-2(lines 302 303) no Hoare annotation was computed. [2021-11-21 01:17:42,836 INFO L854 garLoopResultBuilder]: At program point L302-3(lines 302 303) the Hoare annotation is: false [2021-11-21 01:17:42,836 INFO L858 garLoopResultBuilder]: For program point L302-4(lines 299 339) no Hoare annotation was computed. [2021-11-21 01:17:42,837 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 409) no Hoare annotation was computed. [2021-11-21 01:17:42,837 INFO L858 garLoopResultBuilder]: For program point L402-2(lines 402 409) no Hoare annotation was computed. [2021-11-21 01:17:42,837 INFO L858 garLoopResultBuilder]: For program point L237(line 237) no Hoare annotation was computed. [2021-11-21 01:17:42,837 INFO L858 garLoopResultBuilder]: For program point L204(line 204) no Hoare annotation was computed. [2021-11-21 01:17:42,837 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 436 440) no Hoare annotation was computed. [2021-11-21 01:17:42,837 INFO L854 garLoopResultBuilder]: At program point L436-2(lines 436 440) the Hoare annotation is: false [2021-11-21 01:17:42,837 INFO L858 garLoopResultBuilder]: For program point L436-3(lines 436 440) no Hoare annotation was computed. [2021-11-21 01:17:42,838 INFO L858 garLoopResultBuilder]: For program point L304-1(line 304) no Hoare annotation was computed. [2021-11-21 01:17:42,838 INFO L858 garLoopResultBuilder]: For program point L271-1(lines 271 274) no Hoare annotation was computed. [2021-11-21 01:17:42,838 INFO L854 garLoopResultBuilder]: At program point L271-3(lines 271 274) the Hoare annotation is: false [2021-11-21 01:17:42,838 INFO L854 garLoopResultBuilder]: At program point L569(lines 569 599) the Hoare annotation is: (and (= |ULTIMATE.start_cos_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_cos_float_#res#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 01:17:42,838 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 42) no Hoare annotation was computed. [2021-11-21 01:17:42,838 INFO L858 garLoopResultBuilder]: For program point L306(line 306) no Hoare annotation was computed. [2021-11-21 01:17:42,839 INFO L858 garLoopResultBuilder]: For program point L306-2(line 306) no Hoare annotation was computed. [2021-11-21 01:17:42,839 INFO L858 garLoopResultBuilder]: For program point L472(lines 472 475) no Hoare annotation was computed. [2021-11-21 01:17:42,839 INFO L854 garLoopResultBuilder]: At program point L340(lines 170 341) the Hoare annotation is: false [2021-11-21 01:17:42,839 INFO L858 garLoopResultBuilder]: For program point L307(line 307) no Hoare annotation was computed. [2021-11-21 01:17:42,839 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2021-11-21 01:17:42,839 INFO L858 garLoopResultBuilder]: For program point L209(lines 209 217) no Hoare annotation was computed. [2021-11-21 01:17:42,840 INFO L858 garLoopResultBuilder]: For program point L143-1(lines 143 147) no Hoare annotation was computed. [2021-11-21 01:17:42,840 INFO L854 garLoopResultBuilder]: At program point L143-2(lines 143 147) the Hoare annotation is: false [2021-11-21 01:17:42,840 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-21 01:17:42,840 INFO L858 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-11-21 01:17:42,840 INFO L858 garLoopResultBuilder]: For program point L573-1(lines 573 577) no Hoare annotation was computed. [2021-11-21 01:17:42,840 INFO L854 garLoopResultBuilder]: At program point L573-2(lines 573 577) the Hoare annotation is: (and (= |ULTIMATE.start_cos_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 01:17:42,841 INFO L858 garLoopResultBuilder]: For program point L573-3(lines 573 577) no Hoare annotation was computed. [2021-11-21 01:17:42,841 INFO L854 garLoopResultBuilder]: At program point L276(line 276) the Hoare annotation is: false [2021-11-21 01:17:42,841 INFO L858 garLoopResultBuilder]: For program point L276-1(line 276) no Hoare annotation was computed. [2021-11-21 01:17:42,841 INFO L858 garLoopResultBuilder]: For program point L309-2(lines 309 310) no Hoare annotation was computed. [2021-11-21 01:17:42,841 INFO L854 garLoopResultBuilder]: At program point L309-3(lines 309 310) the Hoare annotation is: false [2021-11-21 01:17:42,841 INFO L858 garLoopResultBuilder]: For program point L309-4(lines 299 339) no Hoare annotation was computed. [2021-11-21 01:17:42,841 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 461) no Hoare annotation was computed. [2021-11-21 01:17:42,842 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 430 462) no Hoare annotation was computed. [2021-11-21 01:17:42,842 INFO L858 garLoopResultBuilder]: For program point L277(lines 277 284) no Hoare annotation was computed. [2021-11-21 01:17:42,842 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 245) no Hoare annotation was computed. [2021-11-21 01:17:42,842 INFO L854 garLoopResultBuilder]: At program point L277-2(lines 268 285) the Hoare annotation is: false [2021-11-21 01:17:42,842 INFO L858 garLoopResultBuilder]: For program point L311-1(line 311) no Hoare annotation was computed. [2021-11-21 01:17:42,842 INFO L854 garLoopResultBuilder]: At program point L245(line 245) the Hoare annotation is: false [2021-11-21 01:17:42,842 INFO L858 garLoopResultBuilder]: For program point L245-1(line 245) no Hoare annotation was computed. [2021-11-21 01:17:42,843 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 181) no Hoare annotation was computed. [2021-11-21 01:17:42,843 INFO L858 garLoopResultBuilder]: For program point L180-2(lines 180 181) no Hoare annotation was computed. [2021-11-21 01:17:42,843 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 478 482) no Hoare annotation was computed. [2021-11-21 01:17:42,843 INFO L854 garLoopResultBuilder]: At program point L478-2(lines 478 482) the Hoare annotation is: false [2021-11-21 01:17:42,843 INFO L858 garLoopResultBuilder]: For program point L478-3(lines 478 482) no Hoare annotation was computed. [2021-11-21 01:17:42,843 INFO L858 garLoopResultBuilder]: For program point L313-2(lines 313 314) no Hoare annotation was computed. [2021-11-21 01:17:42,843 INFO L858 garLoopResultBuilder]: For program point L214(lines 214 217) no Hoare annotation was computed. [2021-11-21 01:17:42,843 INFO L854 garLoopResultBuilder]: At program point L313-3(lines 313 314) the Hoare annotation is: false [2021-11-21 01:17:42,843 INFO L858 garLoopResultBuilder]: For program point L313-4(lines 299 339) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 152) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 141 154) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L148-2(lines 148 152) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 420) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L413-2(lines 413 420) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L612(lines 612 615) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L315-1(line 315) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 217) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L249-1(lines 171 341) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L216-2(lines 171 341) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L613(line 613) no Hoare annotation was computed. [2021-11-21 01:17:42,844 INFO L858 garLoopResultBuilder]: For program point L580(lines 580 598) no Hoare annotation was computed. [2021-11-21 01:17:42,845 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 448 452) no Hoare annotation was computed. [2021-11-21 01:17:42,845 INFO L854 garLoopResultBuilder]: At program point L448-2(lines 448 452) the Hoare annotation is: false [2021-11-21 01:17:42,845 INFO L858 garLoopResultBuilder]: For program point L448-3(lines 448 452) no Hoare annotation was computed. [2021-11-21 01:17:42,845 INFO L854 garLoopResultBuilder]: At program point L581(line 581) the Hoare annotation is: false [2021-11-21 01:17:42,845 INFO L858 garLoopResultBuilder]: For program point L581-1(line 581) no Hoare annotation was computed. [2021-11-21 01:17:42,845 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 01:17:42,845 INFO L858 garLoopResultBuilder]: For program point L317(line 317) no Hoare annotation was computed. [2021-11-21 01:17:42,845 INFO L858 garLoopResultBuilder]: For program point L251-2(lines 251 252) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L854 garLoopResultBuilder]: At program point L251-3(lines 251 252) the Hoare annotation is: false [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L251-4(lines 249 266) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L483-2(lines 483 486) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L854 garLoopResultBuilder]: At program point L483-3(lines 483 486) the Hoare annotation is: false [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L483-4(lines 483 486) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L219(lines 171 341) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L854 garLoopResultBuilder]: At program point L318-3(lines 318 322) the Hoare annotation is: false [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L318-4(lines 318 322) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L854 garLoopResultBuilder]: At program point L153(lines 141 154) the Hoare annotation is: false [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L186-2(lines 186 187) no Hoare annotation was computed. [2021-11-21 01:17:42,846 INFO L854 garLoopResultBuilder]: At program point L186-3(lines 186 187) the Hoare annotation is: false [2021-11-21 01:17:42,846 INFO L858 garLoopResultBuilder]: For program point L186-4(lines 186 187) no Hoare annotation was computed. [2021-11-21 01:17:42,847 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 598) no Hoare annotation was computed. [2021-11-21 01:17:42,847 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-11-21 01:17:42,847 INFO L858 garLoopResultBuilder]: For program point L187-2(line 187) no Hoare annotation was computed. [2021-11-21 01:17:42,847 INFO L858 garLoopResultBuilder]: For program point L55(lines 55 59) no Hoare annotation was computed. [2021-11-21 01:17:42,847 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 20 61) no Hoare annotation was computed. [2021-11-21 01:17:42,847 INFO L858 garLoopResultBuilder]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2021-11-21 01:17:42,847 INFO L861 garLoopResultBuilder]: At program point L617(lines 601 618) the Hoare annotation is: true [2021-11-21 01:17:42,847 INFO L858 garLoopResultBuilder]: For program point L287(line 287) no Hoare annotation was computed. [2021-11-21 01:17:42,848 INFO L858 garLoopResultBuilder]: For program point L254-1(lines 254 255) no Hoare annotation was computed. [2021-11-21 01:17:42,848 INFO L858 garLoopResultBuilder]: For program point L254-3(lines 254 255) no Hoare annotation was computed. [2021-11-21 01:17:42,848 INFO L854 garLoopResultBuilder]: At program point L254-4(lines 254 255) the Hoare annotation is: false [2021-11-21 01:17:42,848 INFO L858 garLoopResultBuilder]: For program point L254-5(lines 254 255) no Hoare annotation was computed. [2021-11-21 01:17:42,848 INFO L858 garLoopResultBuilder]: For program point L23-1(lines 23 27) no Hoare annotation was computed. [2021-11-21 01:17:42,848 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 23 27) the Hoare annotation is: false [2021-11-21 01:17:42,848 INFO L858 garLoopResultBuilder]: For program point L23-3(lines 23 27) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L288-2(lines 288 291) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L854 garLoopResultBuilder]: At program point L288-3(lines 288 291) the Hoare annotation is: false [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 222 231) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L288-4(lines 288 291) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 189 193) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L854 garLoopResultBuilder]: At program point L222-3(lines 222 231) the Hoare annotation is: false [2021-11-21 01:17:42,849 INFO L854 garLoopResultBuilder]: At program point L189-3(lines 189 193) the Hoare annotation is: false [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L222-4(lines 219 247) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L189-4(lines 189 193) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 460) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L858 garLoopResultBuilder]: For program point L388-1(lines 388 392) no Hoare annotation was computed. [2021-11-21 01:17:42,849 INFO L854 garLoopResultBuilder]: At program point L388-2(lines 388 392) the Hoare annotation is: false [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L388-3(lines 388 392) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L190-2(lines 190 191) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L854 garLoopResultBuilder]: At program point L190-3(lines 190 191) the Hoare annotation is: false [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L190-4(lines 190 191) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L323-2(lines 323 327) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 230) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L854 garLoopResultBuilder]: At program point L323-3(lines 323 327) the Hoare annotation is: false [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L257-2(lines 257 262) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L323-4(lines 323 327) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L854 garLoopResultBuilder]: At program point L257-3(lines 257 262) the Hoare annotation is: false [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L257-4(lines 257 262) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L588(lines 588 597) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L858 garLoopResultBuilder]: For program point L489-1(lines 489 490) no Hoare annotation was computed. [2021-11-21 01:17:42,850 INFO L854 garLoopResultBuilder]: At program point L489-3(lines 489 490) the Hoare annotation is: false [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L489-4(lines 489 490) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 228) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L854 garLoopResultBuilder]: At program point L60(lines 20 61) the Hoare annotation is: false [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L589(line 589) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 470) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L259-2(lines 259 260) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L854 garLoopResultBuilder]: At program point L259-3(lines 259 260) the Hoare annotation is: false [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L259-4(lines 259 260) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L854 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: false [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L590-1(line 590) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L293-2(lines 293 297) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L854 garLoopResultBuilder]: At program point L293-3(lines 293 297) the Hoare annotation is: false [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L293-4(lines 293 297) no Hoare annotation was computed. [2021-11-21 01:17:42,851 INFO L858 garLoopResultBuilder]: For program point L591(line 591) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L492(lines 492 496) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L294-2(lines 294 295) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L854 garLoopResultBuilder]: At program point L294-3(lines 294 295) the Hoare annotation is: false [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L294-4(lines 294 295) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 54) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L854 garLoopResultBuilder]: At program point L592(line 592) the Hoare annotation is: false [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L592-1(line 592) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 398) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L328-2(lines 328 329) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L854 garLoopResultBuilder]: At program point L328-3(lines 328 329) the Hoare annotation is: false [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L328-4(lines 299 339) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L854 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: (and (= |ULTIMATE.start_cos_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_cos_float_#res#1|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 48) no Hoare annotation was computed. [2021-11-21 01:17:42,852 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-11-21 01:17:42,853 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 38) no Hoare annotation was computed. [2021-11-21 01:17:42,853 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 01:17:42,853 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 613) no Hoare annotation was computed. [2021-11-21 01:17:42,853 INFO L854 garLoopResultBuilder]: At program point L594(line 594) the Hoare annotation is: false [2021-11-21 01:17:42,853 INFO L858 garLoopResultBuilder]: For program point L594-1(line 594) no Hoare annotation was computed. [2021-11-21 01:17:42,853 INFO L854 garLoopResultBuilder]: At program point L264(lines 171 341) the Hoare annotation is: false [2021-11-21 01:17:42,853 INFO L858 garLoopResultBuilder]: For program point L198-2(lines 198 202) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L854 garLoopResultBuilder]: At program point L198-3(lines 198 202) the Hoare annotation is: false [2021-11-21 01:17:42,854 INFO L854 garLoopResultBuilder]: At program point L198-4(lines 198 202) the Hoare annotation is: false [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L595(line 595) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L430(line 430) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L430-2(lines 430 462) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L232-1(lines 219 247) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L854 garLoopResultBuilder]: At program point L596(line 596) the Hoare annotation is: false [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L596-1(line 596) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L854 garLoopResultBuilder]: At program point L497(lines 382 498) the Hoare annotation is: false [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 469) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L854 garLoopResultBuilder]: At program point L299(lines 299 339) the Hoare annotation is: false [2021-11-21 01:17:42,854 INFO L854 garLoopResultBuilder]: At program point L233(lines 233 240) the Hoare annotation is: false [2021-11-21 01:17:42,854 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2021-11-21 01:17:42,854 INFO L861 garLoopResultBuilder]: At program point L118(line 118) the Hoare annotation is: true [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L118-1(line 118) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L861 garLoopResultBuilder]: At program point L131(line 131) the Hoare annotation is: true [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L131-1(line 131) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L127(lines 127 132) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 94 98) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L861 garLoopResultBuilder]: At program point L94-2(lines 94 98) the Hoare annotation is: true [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L94-3(lines 94 98) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 126) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point scalbn_floatFINAL(lines 90 140) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L107-1(lines 107 111) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L861 garLoopResultBuilder]: At program point L107-2(lines 107 111) the Hoare annotation is: true [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L107-3(lines 107 111) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 104) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 131) no Hoare annotation was computed. [2021-11-21 01:17:42,855 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L861 garLoopResultBuilder]: At program point L120-2(lines 120 124) the Hoare annotation is: true [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point scalbn_floatEXIT(lines 90 140) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L861 garLoopResultBuilder]: At program point scalbn_floatENTRY(lines 90 140) the Hoare annotation is: true [2021-11-21 01:17:42,856 INFO L861 garLoopResultBuilder]: At program point L129(line 129) the Hoare annotation is: true [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L129-1(line 129) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 114) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 115) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L105-2(lines 105 115) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 102) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2021-11-21 01:17:42,856 INFO L861 garLoopResultBuilder]: At program point L134-2(lines 134 138) the Hoare annotation is: true [2021-11-21 01:17:42,856 INFO L858 garLoopResultBuilder]: For program point L134-3(lines 134 138) no Hoare annotation was computed. [2021-11-21 01:17:42,859 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:42,861 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:17:42,870 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,871 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,871 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,871 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,875 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,876 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,876 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,876 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,878 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,879 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,881 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,881 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,882 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,882 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:42,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:17:42 BoogieIcfgContainer [2021-11-21 01:17:42,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:17:42,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:17:42,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:17:42,884 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:17:42,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:12:51" (3/4) ... [2021-11-21 01:17:42,888 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 01:17:42,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __kernel_cosf [2021-11-21 01:17:42,902 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2021-11-21 01:17:42,902 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __kernel_sinf [2021-11-21 01:17:42,903 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_float [2021-11-21 01:17:42,938 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2021-11-21 01:17:42,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-21 01:17:42,946 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-21 01:17:42,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 01:17:42,998 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 01:17:42,999 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-11-21 01:17:43,290 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:17:43,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:17:43,295 INFO L158 Benchmark]: Toolchain (without parser) took 328266.26ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 55.5MB in the beginning and 52.4MB in the end (delta: 3.0MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2021-11-21 01:17:43,295 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:17:43,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.41ms. Allocated memory is still 75.5MB. Free memory was 55.2MB in the beginning and 36.1MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-21 01:17:43,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 155.34ms. Allocated memory is still 75.5MB. Free memory was 36.1MB in the beginning and 52.5MB in the end (delta: -16.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-11-21 01:17:43,298 INFO L158 Benchmark]: Boogie Preprocessor took 181.94ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 45.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 01:17:43,299 INFO L158 Benchmark]: RCFGBuilder took 35326.19ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 45.3MB in the beginning and 44.7MB in the end (delta: 599.1kB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2021-11-21 01:17:43,302 INFO L158 Benchmark]: TraceAbstraction took 291571.23ms. Allocated memory is still 94.4MB. Free memory was 44.2MB in the beginning and 39.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-11-21 01:17:43,302 INFO L158 Benchmark]: Witness Printer took 406.23ms. Allocated memory is still 94.4MB. Free memory was 39.8MB in the beginning and 52.4MB in the end (delta: -12.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-11-21 01:17:43,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.41ms. Allocated memory is still 75.5MB. Free memory was 55.2MB in the beginning and 36.1MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 155.34ms. Allocated memory is still 75.5MB. Free memory was 36.1MB in the beginning and 52.5MB in the end (delta: -16.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 181.94ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 45.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 35326.19ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 45.3MB in the beginning and 44.7MB in the end (delta: 599.1kB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * TraceAbstraction took 291571.23ms. Allocated memory is still 94.4MB. Free memory was 44.2MB in the beginning and 39.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 406.23ms. Allocated memory is still 94.4MB. Free memory was 39.8MB in the beginning and 52.4MB in the end (delta: -12.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 613]: 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 5 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 291.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 230.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 68 mSolverCounterUnknown, 1647 SdHoareTripleChecker+Valid, 227.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1605 mSDsluCounter, 15449 SdHoareTripleChecker+Invalid, 223.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1277 IncrementalHoareTripleChecker+Unchecked, 12933 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1036 IncrementalHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 2516 mSDtfsCounter, 1036 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 423 GetRequests, 329 SyntacticMatches, 5 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=6, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 606 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 179 PreInvPairs, 184 NumberOfFragments, 116 HoareAnnotationTreeSize, 179 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 62 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 11.6s SatisfiabilityAnalysisTime, 46.0s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 404 ConstructedInterpolants, 98 QuantifiedInterpolants, 3635 SizeOfPredicates, 79 NumberOfNonLiveVariables, 3509 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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: 569]: Loop Invariant [2021-11-21 01:17:43,328 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,329 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,329 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,329 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,330 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,330 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,330 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,330 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 299]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 222]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant [2021-11-21 01:17:43,332 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,333 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant [2021-11-21 01:17:43,335 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,335 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,335 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,336 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,337 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,337 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,337 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:17:43,337 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 448]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 436]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 318]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 288]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-21 01:17:43,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f943ae23-1784-42be-945f-e2614b536971/bin/utaipan-TEXQjIfE4P/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