./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:45:47,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:45:47,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:45:47,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:45:47,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:45:47,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:45:47,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:45:47,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:45:47,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:45:47,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:45:47,524 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:45:47,525 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:45:47,526 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:45:47,527 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:45:47,528 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:45:47,528 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:45:47,529 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:45:47,529 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:45:47,530 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:45:47,531 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:45:47,531 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:45:47,532 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:45:47,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:45:47,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:45:47,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:45:47,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:45:47,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:45:47,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:45:47,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:45:47,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:45:47,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:45:47,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:45:47,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:45:47,539 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:45:47,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:45:47,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:45:47,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:47,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:45:47,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:45:47,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:45:47,542 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:45:47,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:45:47,543 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:45:47,543 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:45:47,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:45:47,544 INFO L153 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_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da [2023-11-19 04:45:47,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:45:47,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:45:47,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:45:47,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:45:47,917 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:45:47,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2023-11-19 04:45:51,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:45:51,211 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:45:51,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2023-11-19 04:45:51,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data/13f05dbe1/20c13d308baf44fa80463e941c32c5c4/FLAG9d6f66211 [2023-11-19 04:45:51,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data/13f05dbe1/20c13d308baf44fa80463e941c32c5c4 [2023-11-19 04:45:51,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:45:51,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:45:51,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:51,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:45:51,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:45:51,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264bde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51, skipping insertion in model container [2023-11-19 04:45:51,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:45:51,551 WARN L240 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_d4efd9cb-6577-4c92-9b0d-a03524620e86/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2023-11-19 04:45:51,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:51,568 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:45:51,603 WARN L240 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_d4efd9cb-6577-4c92-9b0d-a03524620e86/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2023-11-19 04:45:51,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:51,624 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:45:51,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51 WrapperNode [2023-11-19 04:45:51,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:51,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:51,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:45:51,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:45:51,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,695 INFO L138 Inliner]: procedures = 19, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 197 [2023-11-19 04:45:51,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:51,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:45:51,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:45:51,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:45:51,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:45:51,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:45:51,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:45:51,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:45:51,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (1/1) ... [2023-11-19 04:45:51,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:51,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:45:51,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:45:51,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:45:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:45:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:45:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:45:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:45:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:45:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:45:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:45:51,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:45:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:45:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 04:45:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:45:51,968 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:45:51,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:45:52,310 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:45:52,417 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:45:52,430 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 04:45:52,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:52 BoogieIcfgContainer [2023-11-19 04:45:52,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:45:52,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:45:52,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:45:52,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:45:52,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:45:51" (1/3) ... [2023-11-19 04:45:52,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b62b7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:45:52, skipping insertion in model container [2023-11-19 04:45:52,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:51" (2/3) ... [2023-11-19 04:45:52,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b62b7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:45:52, skipping insertion in model container [2023-11-19 04:45:52,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:52" (3/3) ... [2023-11-19 04:45:52,452 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2023-11-19 04:45:52,470 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:45:52,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:45:52,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:45:52,525 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@21b64651, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:45:52,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:45:52,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 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) [2023-11-19 04:45:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:45:52,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:45:52,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:45:52,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:45:52,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:45:52,545 INFO L85 PathProgramCache]: Analyzing trace with hash -170726335, now seen corresponding path program 1 times [2023-11-19 04:45:52,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:45:52,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165225564] [2023-11-19 04:45:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:45:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:45:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:45:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:45:52,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:45:52,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165225564] [2023-11-19 04:45:52,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165225564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:45:52,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:45:52,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:45:52,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192572671] [2023-11-19 04:45:52,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:45:52,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:45:52,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:45:52,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:45:52,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:45:52,792 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 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) [2023-11-19 04:45:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:45:52,835 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2023-11-19 04:45:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:45:52,838 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 [2023-11-19 04:45:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:45:52,846 INFO L225 Difference]: With dead ends: 49 [2023-11-19 04:45:52,846 INFO L226 Difference]: Without dead ends: 23 [2023-11-19 04:45:52,849 INFO L412 NwaCegarLoop]: 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 [2023-11-19 04:45:52,853 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:45:52,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:45:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-19 04:45:52,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-19 04:45:52,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:45:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-11-19 04:45:52,891 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2023-11-19 04:45:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:45:52,892 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-11-19 04:45:52,892 INFO L496 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) [2023-11-19 04:45:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-11-19 04:45:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:45:52,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:45:52,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:45:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:45:52,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:45:52,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:45:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash 161112926, now seen corresponding path program 1 times [2023-11-19 04:45:52,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:45:52,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384242639] [2023-11-19 04:45:52,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:45:52,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:45:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:45:52,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:45:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:45:53,086 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:45:53,086 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:45:53,088 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:45:53,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:45:53,095 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:45:53,101 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:45:53,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-19 04:45:53,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-19 04:45:53,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-19 04:45:53,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-19 04:45:53,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short28 could not be translated [2023-11-19 04:45:53,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:45:53 BoogieIcfgContainer [2023-11-19 04:45:53,138 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:45:53,139 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:45:53,139 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:45:53,139 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:45:53,140 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:52" (3/4) ... [2023-11-19 04:45:53,142 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:45:53,143 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:45:53,145 INFO L158 Benchmark]: Toolchain (without parser) took 1903.12ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 98.4MB in the beginning and 114.3MB in the end (delta: -15.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-11-19 04:45:53,145 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:53,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.24ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 85.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:45:53,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.21ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 83.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:45:53,147 INFO L158 Benchmark]: Boogie Preprocessor took 61.57ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 81.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:45:53,148 INFO L158 Benchmark]: RCFGBuilder took 676.34ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 81.1MB in the beginning and 146.6MB in the end (delta: -65.5MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-11-19 04:45:53,149 INFO L158 Benchmark]: TraceAbstraction took 700.08ms. Allocated memory is still 182.5MB. Free memory was 145.7MB in the beginning and 115.1MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 04:45:53,150 INFO L158 Benchmark]: Witness Printer took 4.90ms. Allocated memory is still 182.5MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:53,153 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.24ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 85.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.21ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 83.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.57ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 81.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.34ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 81.1MB in the beginning and 146.6MB in the end (delta: -65.5MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 700.08ms. Allocated memory is still 182.5MB. Free memory was 145.7MB in the beginning and 115.1MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.90ms. Allocated memory is still 182.5MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short28 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 144]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of someUnaryFLOAToperation at line 139, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L139] float x = -0.0f; [L140] CALL, EXPR atan_float(x) [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [\old(x)=1000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000004] [L60] ieee_float_shape_type gf_u; [L61] EXPR gf_u.value = (x) [L62] EXPR gf_u.word [L62] EXPR (hx) = gf_u.word [L59-L63] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000004] [L64] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000004] [L65] COND TRUE ix >= 0x50800000 [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [\old(x)=1000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000004] [L140] RET, EXPR atan_float(x) [L140] float res = atan_float(x); [L143] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, x=1000000000000000000000000000004] [L143] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L144] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, x=1000000000000000000000000000004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 6 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=25occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:45:53,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:45:56,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:45:56,113 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:45:56,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:45:56,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:45:56,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:45:56,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:45:56,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:45:56,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:45:56,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:45:56,185 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:45:56,186 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:45:56,186 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:45:56,188 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:45:56,188 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:45:56,189 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:45:56,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:45:56,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:45:56,191 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:45:56,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:45:56,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:45:56,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:45:56,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:45:56,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:45:56,195 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:45:56,195 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:45:56,196 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:45:56,196 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:45:56,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:45:56,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:45:56,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:45:56,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:45:56,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:45:56,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:56,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:45:56,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:45:56,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:45:56,202 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:45:56,202 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:45:56,203 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:45:56,203 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:45:56,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:45:56,204 INFO L153 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_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da [2023-11-19 04:45:56,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:45:56,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:45:56,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:45:56,694 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:45:56,695 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:45:56,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2023-11-19 04:45:59,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:46:00,107 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:46:00,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2023-11-19 04:46:00,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data/f7490c7c9/8b5f9b7073834b3493e3f7360b8648f3/FLAGb59997a3f [2023-11-19 04:46:00,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/data/f7490c7c9/8b5f9b7073834b3493e3f7360b8648f3 [2023-11-19 04:46:00,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:46:00,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:46:00,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:00,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:46:00,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:46:00,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9db25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00, skipping insertion in model container [2023-11-19 04:46:00,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:46:00,381 WARN L240 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_d4efd9cb-6577-4c92-9b0d-a03524620e86/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2023-11-19 04:46:00,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:00,408 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:46:00,451 WARN L240 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_d4efd9cb-6577-4c92-9b0d-a03524620e86/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2023-11-19 04:46:00,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:00,483 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:46:00,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00 WrapperNode [2023-11-19 04:46:00,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:00,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:00,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:46:00,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:46:00,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,545 INFO L138 Inliner]: procedures = 22, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 197 [2023-11-19 04:46:00,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:00,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:46:00,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:46:00,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:46:00,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:46:00,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:46:00,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:46:00,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:46:00,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (1/1) ... [2023-11-19 04:46:00,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:00,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:00,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:46:00,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:46:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:46:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 04:46:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:46:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:46:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 04:46:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:46:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:46:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:46:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 04:46:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:46:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:46:00,926 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:46:00,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:46:14,230 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:46:14,242 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:46:14,243 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 04:46:14,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:14 BoogieIcfgContainer [2023-11-19 04:46:14,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:46:14,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:46:14,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:46:14,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:46:14,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:46:00" (1/3) ... [2023-11-19 04:46:14,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2026e464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:14, skipping insertion in model container [2023-11-19 04:46:14,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:00" (2/3) ... [2023-11-19 04:46:14,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2026e464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:14, skipping insertion in model container [2023-11-19 04:46:14,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:14" (3/3) ... [2023-11-19 04:46:14,256 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2023-11-19 04:46:14,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:46:14,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:46:14,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:46:14,334 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@477bea81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:46:14,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:46:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 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) [2023-11-19 04:46:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:46:14,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:14,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:14,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:14,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1030213693, now seen corresponding path program 1 times [2023-11-19 04:46:14,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:14,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187397226] [2023-11-19 04:46:14,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:14,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:14,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:14,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:14,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:46:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:15,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:46:15,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:15,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:46:15,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:15,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187397226] [2023-11-19 04:46:15,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187397226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:15,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:15,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:46:15,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745254266] [2023-11-19 04:46:15,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:15,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:46:15,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:15,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:46:15,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:46:15,697 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 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) [2023-11-19 04:46:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:15,728 INFO L93 Difference]: Finished difference Result 68 states and 106 transitions. [2023-11-19 04:46:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:46:15,731 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 [2023-11-19 04:46:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:15,740 INFO L225 Difference]: With dead ends: 68 [2023-11-19 04:46:15,741 INFO L226 Difference]: Without dead ends: 32 [2023-11-19 04:46:15,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:46:15,751 INFO L413 NwaCegarLoop]: 45 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, 45 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 [2023-11-19 04:46:15,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:46:15,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-19 04:46:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-19 04:46:15,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 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) [2023-11-19 04:46:15,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2023-11-19 04:46:15,795 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 10 [2023-11-19 04:46:15,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:15,795 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2023-11-19 04:46:15,796 INFO L496 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) [2023-11-19 04:46:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2023-11-19 04:46:15,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:46:15,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:15,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:15,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:16,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:16,018 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:16,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:16,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1305093504, now seen corresponding path program 1 times [2023-11-19 04:46:16,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:16,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928409841] [2023-11-19 04:46:16,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:16,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:16,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:16,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:16,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:46:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:16,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:46:16,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:17,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:17,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:46:17,372 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928409841] [2023-11-19 04:46:17,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928409841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:17,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:17,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:46:17,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183918621] [2023-11-19 04:46:17,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:17,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:46:17,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:17,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:46:17,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:17,377 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-19 04:46:20,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 04:46:22,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 04:46:22,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:22,546 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2023-11-19 04:46:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:46:22,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 04:46:22,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:22,563 INFO L225 Difference]: With dead ends: 44 [2023-11-19 04:46:22,563 INFO L226 Difference]: Without dead ends: 21 [2023-11-19 04:46:22,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:46:22,565 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 31 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:22,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 41 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2023-11-19 04:46:22,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-19 04:46:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-19 04:46:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 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) [2023-11-19 04:46:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-11-19 04:46:22,571 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 11 [2023-11-19 04:46:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:22,572 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-19 04:46:22,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-19 04:46:22,572 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-19 04:46:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:46:22,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:22,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:22,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:22,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:22,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:22,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:22,797 INFO L85 PathProgramCache]: Analyzing trace with hash -414091197, now seen corresponding path program 1 times [2023-11-19 04:46:22,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:22,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718493353] [2023-11-19 04:46:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:22,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:22,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:22,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:22,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:46:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:23,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:46:23,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:24,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:24,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:46:24,102 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:24,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718493353] [2023-11-19 04:46:24,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718493353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:24,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:24,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:46:24,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124391195] [2023-11-19 04:46:24,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:24,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:46:24,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:24,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:46:24,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:24,105 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:46:26,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:28,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:30,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:32,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:33,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:33,126 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2023-11-19 04:46:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:46:33,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 [2023-11-19 04:46:33,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:33,128 INFO L225 Difference]: With dead ends: 33 [2023-11-19 04:46:33,128 INFO L226 Difference]: Without dead ends: 30 [2023-11-19 04:46:33,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:46:33,131 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:33,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 51 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2023-11-19 04:46:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-19 04:46:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2023-11-19 04:46:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2023-11-19 04:46:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-11-19 04:46:33,140 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 13 [2023-11-19 04:46:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:33,140 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-11-19 04:46:33,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:46:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-19 04:46:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:46:33,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:33,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:33,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:33,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:33,356 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:33,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1850164023, now seen corresponding path program 1 times [2023-11-19 04:46:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:33,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265933208] [2023-11-19 04:46:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:33,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:33,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:33,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:33,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:46:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:35,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:46:35,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:36,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:46:36,299 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265933208] [2023-11-19 04:46:36,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265933208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:36,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:36,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:36,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60467887] [2023-11-19 04:46:36,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:36,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:46:36,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:36,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:46:36,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:46:36,302 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-19 04:46:36,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:36,405 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2023-11-19 04:46:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:46:36,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-11-19 04:46:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:36,407 INFO L225 Difference]: With dead ends: 30 [2023-11-19 04:46:36,407 INFO L226 Difference]: Without dead ends: 18 [2023-11-19 04:46:36,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:46:36,409 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:36,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-19 04:46:36,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-19 04:46:36,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:36,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2023-11-19 04:46:36,413 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2023-11-19 04:46:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:36,414 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2023-11-19 04:46:36,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-19 04:46:36,414 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2023-11-19 04:46:36,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:46:36,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:36,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:36,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:36,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:36,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:36,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash -727082792, now seen corresponding path program 1 times [2023-11-19 04:46:36,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:36,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767899895] [2023-11-19 04:46:36,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:36,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:36,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:36,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:36,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 04:46:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:37,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 04:46:37,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:38,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 04:46:38,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-11-19 04:46:38,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:38,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:46:38,709 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:38,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767899895] [2023-11-19 04:46:38,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767899895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:38,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:38,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 04:46:38,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827132968] [2023-11-19 04:46:38,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:38,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 04:46:38,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:38,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 04:46:38,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:46:38,712 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:39,867 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2023-11-19 04:46:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 04:46:39,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-19 04:46:39,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:39,868 INFO L225 Difference]: With dead ends: 18 [2023-11-19 04:46:39,869 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:46:39,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:46:39,871 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 21 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:39,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 50 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:46:39,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:46:39,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:46:39,873 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) [2023-11-19 04:46:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:46:39,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-11-19 04:46:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:39,874 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:46:39,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:46:39,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:46:39,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:46:39,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-19 04:46:40,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:40,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:46:40,384 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2023-11-19 04:46:40,384 INFO L899 garLoopResultBuilder]: For program point L143-2(lines 143 146) no Hoare annotation was computed. [2023-11-19 04:46:40,384 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 131 149) no Hoare annotation was computed. [2023-11-19 04:46:40,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 04:46:40,384 INFO L899 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2023-11-19 04:46:40,384 INFO L899 garLoopResultBuilder]: For program point L111(lines 111 116) no Hoare annotation was computed. [2023-11-19 04:46:40,385 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:46:40,385 INFO L899 garLoopResultBuilder]: For program point __signbit_float_returnLabel#1(lines 119 129) no Hoare annotation was computed. [2023-11-19 04:46:40,385 INFO L899 garLoopResultBuilder]: For program point atan_float_returnLabel#1(lines 55 117) no Hoare annotation was computed. [2023-11-19 04:46:40,385 INFO L899 garLoopResultBuilder]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2023-11-19 04:46:40,385 INFO L895 garLoopResultBuilder]: At program point L122-2(lines 122 126) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short28#1| (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start_atan_float_#res#1| .cse0) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven))) [2023-11-19 04:46:40,385 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 27) no Hoare annotation was computed. [2023-11-19 04:46:40,386 INFO L899 garLoopResultBuilder]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2023-11-19 04:46:40,386 INFO L895 garLoopResultBuilder]: At program point L23-1(lines 23 27) the Hoare annotation is: false [2023-11-19 04:46:40,386 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2023-11-19 04:46:40,386 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 97) no Hoare annotation was computed. [2023-11-19 04:46:40,388 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 98) no Hoare annotation was computed. [2023-11-19 04:46:40,388 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 72) no Hoare annotation was computed. [2023-11-19 04:46:40,388 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 04:46:40,388 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 96) no Hoare annotation was computed. [2023-11-19 04:46:40,389 INFO L899 garLoopResultBuilder]: For program point L90-2(lines 73 98) no Hoare annotation was computed. [2023-11-19 04:46:40,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2023-11-19 04:46:40,389 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 88) no Hoare annotation was computed. [2023-11-19 04:46:40,389 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 77) no Hoare annotation was computed. [2023-11-19 04:46:40,389 INFO L899 garLoopResultBuilder]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2023-11-19 04:46:40,389 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 67) no Hoare annotation was computed. [2023-11-19 04:46:40,390 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:46:40,390 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 76) no Hoare annotation was computed. [2023-11-19 04:46:40,390 INFO L899 garLoopResultBuilder]: For program point fabs_float_returnLabel#1(lines 16 29) no Hoare annotation was computed. [2023-11-19 04:46:40,390 INFO L899 garLoopResultBuilder]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2023-11-19 04:46:40,390 INFO L895 garLoopResultBuilder]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_atan_float_~x#1|)) [2023-11-19 04:46:40,390 INFO L899 garLoopResultBuilder]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2023-11-19 04:46:40,390 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2023-11-19 04:46:40,391 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: false [2023-11-19 04:46:40,391 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 71) no Hoare annotation was computed. [2023-11-19 04:46:40,394 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 04:46:40,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:46:40,409 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 04:46:40,410 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 04:46:40,411 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short28 could not be translated [2023-11-19 04:46:40,411 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 04:46:40,411 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 04:46:40,411 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~res~0 [2023-11-19 04:46:40,412 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 04:46:40,412 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 04:46:40,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:46:40 BoogieIcfgContainer [2023-11-19 04:46:40,413 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:46:40,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:46:40,414 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:46:40,414 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:46:40,414 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:14" (3/4) ... [2023-11-19 04:46:40,416 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:46:40,426 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 04:46:40,427 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 04:46:40,427 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:46:40,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:46:40,531 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:46:40,532 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:46:40,532 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:46:40,533 INFO L158 Benchmark]: Toolchain (without parser) took 40390.75ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 45.3MB in the end (delta: 28.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-19 04:46:40,533 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:46:40,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.23ms. Allocated memory is still 98.6MB. Free memory was 73.7MB in the beginning and 60.3MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:46:40,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.59ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:46:40,534 INFO L158 Benchmark]: Boogie Preprocessor took 49.06ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 55.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:46:40,535 INFO L158 Benchmark]: RCFGBuilder took 13636.84ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 57.3MB in the end (delta: -2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:46:40,535 INFO L158 Benchmark]: TraceAbstraction took 26164.27ms. Allocated memory is still 98.6MB. Free memory was 56.9MB in the beginning and 51.6MB in the end (delta: 5.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2023-11-19 04:46:40,536 INFO L158 Benchmark]: Witness Printer took 118.86ms. Allocated memory is still 98.6MB. Free memory was 51.6MB in the beginning and 45.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:46:40,538 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.23ms. Allocated memory is still 98.6MB. Free memory was 73.7MB in the beginning and 60.3MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.59ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.06ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 55.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 13636.84ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 57.3MB in the end (delta: -2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 26164.27ms. Allocated memory is still 98.6MB. Free memory was 56.9MB in the beginning and 51.6MB in the end (delta: 5.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Witness Printer took 118.86ms. Allocated memory is still 98.6MB. Free memory was 51.6MB in the beginning and 45.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~res~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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: 144]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 13.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 98 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 6 NumberOfFragments, 55 HoareAnnotationTreeSize, 4 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 1 QuantifiedInterpolants, 337 SizeOfPredicates, 28 NumberOfNonLiveVariables, 489 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-19 04:46:40,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4efd9cb-6577-4c92-9b0d-a03524620e86/bin/utaipan-verify-t7M7D8N6sZ/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