./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:49:13,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:49:13,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:49:13,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:49:13,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:49:13,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:49:13,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:49:13,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:49:13,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:49:13,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:49:13,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:49:13,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:49:13,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:49:13,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:49:13,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:49:13,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:49:13,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:49:13,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:49:13,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:49:13,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:49:13,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:49:13,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:49:13,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:49:13,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:49:13,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:49:13,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:49:13,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:49:13,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:49:13,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:49:13,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:49:13,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:49:13,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:49:13,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:49:13,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:49:13,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:49:13,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:49:13,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:49:13,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:49:13,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:49:13,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:49:13,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:49:13,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:49:13,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:49:13,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:49:13,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:49:13,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:49:13,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:49:13,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:49:13,448 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:49:13,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:49:13,448 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:49:13,448 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:49:13,449 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:49:13,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:49:13,450 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:49:13,450 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:49:13,450 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:49:13,450 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:49:13,451 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:49:13,451 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:49:13,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:49:13,452 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:49:13,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:49:13,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:49:13,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:49:13,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:49:13,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:49:13,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:49:13,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:49:13,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:49:13,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:49:13,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:49:13,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:49:13,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:49:13,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:49:13,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:49:13,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:49:13,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:49:13,457 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:49:13,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:49:13,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:49:13,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:49:13,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:49:13,458 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_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2021-11-23 03:49:13,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:49:13,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:49:13,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:49:13,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:49:13,805 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:49:13,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-23 03:49:13,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/00be0c142/b51ab03a45a9449a9be5875abe87d51a/FLAG3f54f78e9 [2021-11-23 03:49:14,470 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:49:14,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-23 03:49:14,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/00be0c142/b51ab03a45a9449a9be5875abe87d51a/FLAG3f54f78e9 [2021-11-23 03:49:14,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/00be0c142/b51ab03a45a9449a9be5875abe87d51a [2021-11-23 03:49:14,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:49:14,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:49:14,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:49:14,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:49:14,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:49:14,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:14" (1/1) ... [2021-11-23 03:49:14,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477de702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14, skipping insertion in model container [2021-11-23 03:49:14,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:14" (1/1) ... [2021-11-23 03:49:14,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:49:14,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:49:15,089 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_c650cce7-fed3-46ad-84ca-2bf66749826b/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-23 03:49:15,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:49:15,105 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:49:15,153 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_c650cce7-fed3-46ad-84ca-2bf66749826b/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-23 03:49:15,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:49:15,169 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:49:15,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15 WrapperNode [2021-11-23 03:49:15,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:49:15,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:49:15,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:49:15,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:49:15,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,221 INFO L137 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2021-11-23 03:49:15,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:49:15,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:49:15,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:49:15,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:49:15,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:49:15,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:49:15,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:49:15,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:49:15,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (1/1) ... [2021-11-23 03:49:15,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:49:15,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:49:15,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:49:15,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:49:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:49:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:49:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:49:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:49:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 03:49:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 03:49:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:49:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:49:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:49:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 03:49:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:49:15,475 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:49:15,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:49:15,805 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:49:15,845 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:49:15,845 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-23 03:49:15,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:15 BoogieIcfgContainer [2021-11-23 03:49:15,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:49:15,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:49:15,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:49:15,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:49:15,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:49:14" (1/3) ... [2021-11-23 03:49:15,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333f8342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:15, skipping insertion in model container [2021-11-23 03:49:15,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:15" (2/3) ... [2021-11-23 03:49:15,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333f8342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:15, skipping insertion in model container [2021-11-23 03:49:15,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:15" (3/3) ... [2021-11-23 03:49:15,857 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2021-11-23 03:49:15,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:49:15,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:49:15,988 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:49:15,995 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:49:15,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:49:16,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:49:16,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:16,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:49:16,036 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:49:16,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:16,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2021166095, now seen corresponding path program 1 times [2021-11-23 03:49:16,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:16,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429994045] [2021-11-23 03:49:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:16,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:49:16,245 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:16,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429994045] [2021-11-23 03:49:16,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429994045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:16,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:16,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:49:16,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993864749] [2021-11-23 03:49:16,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:16,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:49:16,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:16,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:49:16,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:49:16,305 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:16,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:16,372 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2021-11-23 03:49:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:49:16,377 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 [2021-11-23 03:49:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:16,388 INFO L225 Difference]: With dead ends: 67 [2021-11-23 03:49:16,389 INFO L226 Difference]: Without dead ends: 32 [2021-11-23 03:49:16,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:49:16,399 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:16,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:49:16,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-23 03:49:16,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-23 03:49:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-11-23 03:49:16,453 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2021-11-23 03:49:16,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:16,454 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-23 03:49:16,454 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) [2021-11-23 03:49:16,454 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-11-23 03:49:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:49:16,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:16,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:49:16,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:49:16,457 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:49:16,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash 342564116, now seen corresponding path program 1 times [2021-11-23 03:49:16,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:16,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439426388] [2021-11-23 03:49:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:16,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:49:16,542 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:49:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:49:16,668 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:49:16,668 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:49:16,674 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:49:16,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:49:16,690 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 03:49:16,693 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:49:16,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:49:16 BoogieIcfgContainer [2021-11-23 03:49:16,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:49:16,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:49:16,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:49:16,720 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:49:16,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:15" (3/4) ... [2021-11-23 03:49:16,727 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 03:49:16,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:49:16,729 INFO L158 Benchmark]: Toolchain (without parser) took 1918.92ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 62.1MB in the beginning and 71.7MB in the end (delta: -9.5MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-11-23 03:49:16,730 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:49:16,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.73ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 68.4MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:49:16,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.51ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:49:16,740 INFO L158 Benchmark]: Boogie Preprocessor took 34.66ms. Allocated memory is still 96.5MB. Free memory was 66.3MB in the beginning and 64.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:49:16,743 INFO L158 Benchmark]: RCFGBuilder took 591.12ms. Allocated memory is still 96.5MB. Free memory was 64.8MB in the beginning and 48.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 03:49:16,744 INFO L158 Benchmark]: TraceAbstraction took 868.58ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 48.3MB in the beginning and 72.2MB in the end (delta: -23.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:49:16,744 INFO L158 Benchmark]: Witness Printer took 8.50ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 71.7MB in the end (delta: 557.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:49:16,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.73ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 68.4MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.51ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.66ms. Allocated memory is still 96.5MB. Free memory was 66.3MB in the beginning and 64.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 591.12ms. Allocated memory is still 96.5MB. Free memory was 64.8MB in the beginning and 48.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 868.58ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 48.3MB in the beginning and 72.2MB in the end (delta: -23.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.50ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 71.7MB in the end (delta: 557.1kB). 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: 125]: 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 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L121] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967298, \old(y)=4294967296, one_fmod=1, x=4294967298, y=4294967296, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967298, \old(y)=4294967296, one_fmod=1, sx=-1, x=4294967298, y=4294967296, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967298, \old(y)=4294967296, hx=2139095040, hy=0, one_fmod=1, sx=-1, x=4294967298, y=4294967296, Zero_fmod={4:0}] [L121] RET, EXPR fmod_float(x, y) [L121] float res = fmod_float(x, y); [L124] CALL, EXPR isnan_float(res) [L110] return x != x; [L124] RET, EXPR isnan_float(res) [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, res=4294967297, x=4294967298, y=4294967296, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 36 mSDtfsCounter, 10 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=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 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 [2021-11-23 03:49:16,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:49:19,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:49:19,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:49:19,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:49:19,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:49:19,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:49:19,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:49:19,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:49:19,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:49:19,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:49:19,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:49:19,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:49:19,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:49:19,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:49:19,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:49:19,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:49:19,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:49:19,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:49:19,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:49:19,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:49:19,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:49:19,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:49:19,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:49:19,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:49:19,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:49:19,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:49:19,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:49:19,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:49:19,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:49:19,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:49:19,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:49:19,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:49:19,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:49:19,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:49:19,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:49:19,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:49:19,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:49:19,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:49:19,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:49:19,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:49:19,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:49:19,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 03:49:19,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:49:19,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:49:19,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:49:19,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:49:19,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:49:19,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:49:19,471 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:49:19,471 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:49:19,472 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:49:19,472 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:49:19,472 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:49:19,472 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:49:19,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:49:19,473 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:49:19,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:49:19,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:49:19,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:49:19,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:49:19,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:49:19,475 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:49:19,475 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 03:49:19,475 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 03:49:19,475 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:49:19,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:49:19,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:49:19,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:49:19,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:49:19,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 03:49:19,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:49:19,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:49:19,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:49:19,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:49:19,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:49:19,478 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 03:49:19,478 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 03:49:19,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:49:19,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:49:19,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:49:19,479 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_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2021-11-23 03:49:19,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:49:19,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:49:19,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:49:19,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:49:19,877 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:49:19,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-23 03:49:19,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/c01c6a0e3/2c7890d70da142b7a856406f73c8990a/FLAG5e5846b9f [2021-11-23 03:49:20,512 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:49:20,514 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-23 03:49:20,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/c01c6a0e3/2c7890d70da142b7a856406f73c8990a/FLAG5e5846b9f [2021-11-23 03:49:20,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/data/c01c6a0e3/2c7890d70da142b7a856406f73c8990a [2021-11-23 03:49:20,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:49:20,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:49:20,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:49:20,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:49:20,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:49:20,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:20" (1/1) ... [2021-11-23 03:49:20,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f3db6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:20, skipping insertion in model container [2021-11-23 03:49:20,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:20" (1/1) ... [2021-11-23 03:49:20,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:49:20,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:49:21,109 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_c650cce7-fed3-46ad-84ca-2bf66749826b/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-23 03:49:21,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:49:21,137 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:49:21,244 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_c650cce7-fed3-46ad-84ca-2bf66749826b/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-23 03:49:21,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:49:21,275 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:49:21,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21 WrapperNode [2021-11-23 03:49:21,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:49:21,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:49:21,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:49:21,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:49:21,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,351 INFO L137 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2021-11-23 03:49:21,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:49:21,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:49:21,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:49:21,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:49:21,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:49:21,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:49:21,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:49:21,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:49:21,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (1/1) ... [2021-11-23 03:49:21,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:49:21,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:49:21,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:49:21,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:49:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:49:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-23 03:49:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 03:49:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:49:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 03:49:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 03:49:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:49:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:49:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 03:49:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 03:49:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:49:21,650 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:49:21,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:49:24,113 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:49:24,119 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:49:24,119 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-23 03:49:24,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:24 BoogieIcfgContainer [2021-11-23 03:49:24,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:49:24,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:49:24,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:49:24,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:49:24,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:49:20" (1/3) ... [2021-11-23 03:49:24,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2d01b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:24, skipping insertion in model container [2021-11-23 03:49:24,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:21" (2/3) ... [2021-11-23 03:49:24,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2d01b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:24, skipping insertion in model container [2021-11-23 03:49:24,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:24" (3/3) ... [2021-11-23 03:49:24,131 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2021-11-23 03:49:24,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:49:24,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:49:24,207 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:49:24,215 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:49:24,215 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:49:24,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:24,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:49:24,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:24,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:49:24,236 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:49:24,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:24,241 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2021-11-23 03:49:24,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:49:24,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847467664] [2021-11-23 03:49:24,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:24,252 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:49:24,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:49:24,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:49:24,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 03:49:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:24,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 03:49:24,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:49:24,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:49:24,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:49:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:49:24,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:49:24,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847467664] [2021-11-23 03:49:24,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847467664] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:24,663 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:24,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 03:49:24,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205632321] [2021-11-23 03:49:24,667 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:24,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:49:24,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:49:24,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:49:24,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:49:24,722 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:24,753 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2021-11-23 03:49:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:49:24,757 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 03:49:24,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:24,768 INFO L225 Difference]: With dead ends: 82 [2021-11-23 03:49:24,768 INFO L226 Difference]: Without dead ends: 39 [2021-11-23 03:49:24,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:49:24,776 INFO L933 BasicCegarLoop]: 57 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, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:24,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:49:24,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-23 03:49:24,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-23 03:49:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-11-23 03:49:24,836 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2021-11-23 03:49:24,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:24,837 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-11-23 03:49:24,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:24,837 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-11-23 03:49:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:49:24,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:24,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:49:24,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:49:25,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:49:25,058 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:49:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:25,059 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2021-11-23 03:49:25,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:49:25,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122714731] [2021-11-23 03:49:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:25,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:49:25,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:49:25,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:49:25,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 03:49:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:25,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 03:49:25,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:49:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:49:28,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:49:36,037 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_fmod_float_~y#1| (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_fmod_float_~y#1|))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-11-23 03:49:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:49:56,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:49:56,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122714731] [2021-11-23 03:49:56,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122714731] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:56,973 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:56,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-23 03:49:56,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156826053] [2021-11-23 03:49:56,974 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:56,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 03:49:56,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:49:56,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 03:49:56,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2021-11-23 03:49:56,977 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:49:59,324 WARN L860 $PredicateComparison]: unable to prove that (and (= (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 8 24) c_currentRoundingMode 1.0)) (_ +zero 8 24)) |c_ULTIMATE.start_fmod_float_~x#1|) (forall ((|ULTIMATE.start_fmod_float_~y#1| (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_fmod_float_~y#1|))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-23 03:50:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:02,866 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2021-11-23 03:50:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:50:02,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 03:50:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:02,867 INFO L225 Difference]: With dead ends: 44 [2021-11-23 03:50:02,867 INFO L226 Difference]: Without dead ends: 39 [2021-11-23 03:50:02,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=32, Invalid=84, Unknown=2, NotChecked=38, Total=156 [2021-11-23 03:50:02,870 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 2 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:02,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 299 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 82 Unchecked, 0.6s Time] [2021-11-23 03:50:02,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-23 03:50:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-23 03:50:02,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:50:02,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-11-23 03:50:02,878 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2021-11-23 03:50:02,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:02,878 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-11-23 03:50:02,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:50:02,879 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-11-23 03:50:02,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:50:02,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:02,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:50:02,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:50:03,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:50:03,081 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:50:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:03,082 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2021-11-23 03:50:03,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:50:03,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575452471] [2021-11-23 03:50:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:03,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:50:03,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:50:03,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:50:03,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 03:50:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:03,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 03:50:03,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:50:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:50:03,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:50:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:50:03,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:50:03,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575452471] [2021-11-23 03:50:03,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575452471] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:03,727 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:03,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 03:50:03,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174183284] [2021-11-23 03:50:03,727 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:03,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:50:03,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:50:03,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:50:03,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:50:03,729 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:50:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:03,744 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-11-23 03:50:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:50:03,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 03:50:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:03,746 INFO L225 Difference]: With dead ends: 39 [2021-11-23 03:50:03,746 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:50:03,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:50:03,749 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 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 [2021-11-23 03:50:03,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2021-11-23 03:50:03,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:50:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:50:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:50:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:50:03,756 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-23 03:50:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:03,759 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:50:03,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:50:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:50:03,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:50:03,762 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:50:03,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:50:03,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:50:03,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:50:07,966 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-11-23 03:50:07,966 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-11-23 03:50:07,966 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-11-23 03:50:07,966 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-11-23 03:50:07,967 INFO L854 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) (exists ((|ULTIMATE.start_fmod_float_~y#1| (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~y#1|))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res#1|))) [2021-11-23 03:50:07,967 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-11-23 03:50:07,967 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-23 03:50:07,967 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-11-23 03:50:07,967 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 03:50:07,968 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 03:50:07,968 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-11-23 03:50:07,968 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-11-23 03:50:07,968 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-11-23 03:50:07,968 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-11-23 03:50:07,968 INFO L861 garLoopResultBuilder]: At program point L129(lines 112 130) the Hoare annotation is: true [2021-11-23 03:50:07,969 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-11-23 03:50:07,969 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-11-23 03:50:07,969 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 03:50:07,969 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-23 03:50:07,969 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-11-23 03:50:07,970 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_float_#res#1| |ULTIMATE.start_fmod_float_#res#1|)) [2021-11-23 03:50:07,970 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-23 03:50:07,970 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 03:50:07,970 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-23 03:50:07,970 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-11-23 03:50:07,971 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-11-23 03:50:07,971 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-11-23 03:50:07,971 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-11-23 03:50:07,971 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-11-23 03:50:07,971 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-11-23 03:50:07,971 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:50:07,972 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-11-23 03:50:07,972 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 127) no Hoare annotation was computed. [2021-11-23 03:50:07,972 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-11-23 03:50:07,972 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-11-23 03:50:07,972 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-11-23 03:50:07,972 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-11-23 03:50:07,972 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-23 03:50:07,973 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-11-23 03:50:07,973 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-11-23 03:50:07,973 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-11-23 03:50:07,974 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-11-23 03:50:07,982 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 03:50:07,984 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:50:07,993 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:07,994 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:07,995 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:07,995 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:07,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-23 03:50:07,996 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:07,996 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:07,996 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:07,996 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-23 03:50:08,001 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,001 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,002 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,002 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,002 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-23 03:50:08,002 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,003 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,003 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,003 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-23 03:50:08,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,005 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,006 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,006 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,006 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:50:08 BoogieIcfgContainer [2021-11-23 03:50:08,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:50:08,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:50:08,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:50:08,009 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:50:08,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:24" (3/4) ... [2021-11-23 03:50:08,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:50:08,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 03:50:08,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 03:50:08,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 03:50:08,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:50:08,053 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 03:50:08,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:50:08,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:50:08,069 INFO L158 Benchmark]: Toolchain (without parser) took 47194.91ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 45.9MB in the beginning and 41.7MB in the end (delta: 4.1MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-11-23 03:50:08,070 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:50:08,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.81ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 45.2MB in the end (delta: 501.9kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 03:50:08,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.97ms. Allocated memory is still 62.9MB. Free memory was 45.2MB in the beginning and 43.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:50:08,071 INFO L158 Benchmark]: Boogie Preprocessor took 81.00ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 41.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:50:08,072 INFO L158 Benchmark]: RCFGBuilder took 2687.08ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 26.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 03:50:08,073 INFO L158 Benchmark]: TraceAbstraction took 43884.44ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 25.9MB in the beginning and 44.4MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:50:08,073 INFO L158 Benchmark]: Witness Printer took 59.36ms. Allocated memory is still 77.6MB. Free memory was 44.4MB in the beginning and 41.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:50:08,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.81ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 45.2MB in the end (delta: 501.9kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.97ms. Allocated memory is still 62.9MB. Free memory was 45.2MB in the beginning and 43.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.00ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 41.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2687.08ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 26.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 43884.44ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 25.9MB in the beginning and 44.4MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.36ms. Allocated memory is still 77.6MB. Free memory was 44.4MB in the beginning and 41.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 373 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 85 IncrementalHoareTripleChecker+Unchecked, 262 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 111 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 54 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 32.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 449 SizeOfPredicates, 19 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 110]: Loop Invariant [2021-11-23 03:50:08,112 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,112 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,112 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,113 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,113 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-23 03:50:08,113 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,113 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,113 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,115 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-23 03:50:08,115 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,116 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,116 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,116 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,116 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-23 03:50:08,116 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,117 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,117 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,117 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_float_~y#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y#1), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y#1)) == \result) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-11-23 03:50:08,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,123 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 03:50:08,123 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,123 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 03:50:08,124 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) RESULT: Ultimate proved your program to be correct! [2021-11-23 03:50:08,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c650cce7-fed3-46ad-84ca-2bf66749826b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE