./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E --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 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:33:57,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:33:57,466 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:33:57,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:33:57,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:33:57,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:33:57,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:33:57,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:33:57,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:33:57,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:33:57,504 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:33:57,504 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:33:57,505 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:33:57,505 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:33:57,505 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:33:57,505 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:33:57,506 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:33:57,506 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:33:57,506 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:33:57,507 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:33:57,508 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:33:57,508 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:33:57,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:33:57,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:33:57,509 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:33:57,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:33:57,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:33:57,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:33:57,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:33:57,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:33:57,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:33:57,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:33:57,510 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:33:57,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:33:57,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:33:57,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:33:57,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:33:57,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:33:57,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:33:57,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:33:57,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:33:57,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:33:57,513 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:33:57,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:33:57,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:33:57,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:33:57,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:33:57,514 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E 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 -> 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 [2024-11-14 04:33:57,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:33:57,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:33:57,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:33:57,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:33:57,952 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:33:57,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c Unable to find full path for "g++" [2024-11-14 04:34:00,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:34:00,512 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:34:00,513 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2024-11-14 04:34:00,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data/ad7c15e06/44ae389279da43539c7e9acb982c5a5b/FLAG9f9010a02 [2024-11-14 04:34:00,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data/ad7c15e06/44ae389279da43539c7e9acb982c5a5b [2024-11-14 04:34:00,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:34:00,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:34:00,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:00,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:34:00,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:34:00,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:00" (1/1) ... [2024-11-14 04:34:00,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55cf2613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:00, skipping insertion in model container [2024-11-14 04:34:00,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:00" (1/1) ... [2024-11-14 04:34:00,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:34:01,150 WARN L250 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_dd3e1e18-1c3c-4084-9dbb-07a32e148869/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2024-11-14 04:34:01,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:01,175 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:34:01,289 WARN L250 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_dd3e1e18-1c3c-4084-9dbb-07a32e148869/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2024-11-14 04:34:01,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:01,320 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:34:01,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01 WrapperNode [2024-11-14 04:34:01,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:01,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:01,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:34:01,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:34:01,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,385 INFO L138 Inliner]: procedures = 21, calls = 90, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 327 [2024-11-14 04:34:01,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:01,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:34:01,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:34:01,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:34:01,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:34:01,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:34:01,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:34:01,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:34:01,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (1/1) ... [2024-11-14 04:34:01,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:34:01,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:34:01,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:34:01,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:34:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2024-11-14 04:34:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2024-11-14 04:34:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:34:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:34:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-14 04:34:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:34:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 04:34:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:34:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-11-14 04:34:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-11-14 04:34:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 04:34:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-11-14 04:34:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-11-14 04:34:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:34:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:34:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:34:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 04:34:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:34:01,759 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:34:01,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:34:02,742 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-14 04:34:02,743 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:34:03,201 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:34:03,201 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-14 04:34:03,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:03 BoogieIcfgContainer [2024-11-14 04:34:03,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:34:03,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:34:03,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:34:03,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:34:03,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:34:00" (1/3) ... [2024-11-14 04:34:03,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7608d170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:03, skipping insertion in model container [2024-11-14 04:34:03,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:01" (2/3) ... [2024-11-14 04:34:03,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7608d170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:03, skipping insertion in model container [2024-11-14 04:34:03,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:03" (3/3) ... [2024-11-14 04:34:03,221 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2024-11-14 04:34:03,241 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:34:03,243 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0670.c that has 4 procedures, 82 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2024-11-14 04:34:03,338 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:34:03,358 INFO L333 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, 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;@7a71e6bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:34:03,359 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:34:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 70 states have (on average 1.6571428571428573) internal successors, (116), 71 states have internal predecessors, (116), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:34:03,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:34:03,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:03,376 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:03,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:03,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:03,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1946091589, now seen corresponding path program 1 times [2024-11-14 04:34:03,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:03,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611633150] [2024-11-14 04:34:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:03,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:34:03,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:03,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611633150] [2024-11-14 04:34:03,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611633150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:03,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:03,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:34:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651848091] [2024-11-14 04:34:03,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:03,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:34:03,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:03,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:34:03,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:34:03,882 INFO L87 Difference]: Start difference. First operand has 82 states, 70 states have (on average 1.6571428571428573) internal successors, (116), 71 states have internal predecessors, (116), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:34:04,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:04,126 INFO L93 Difference]: Finished difference Result 157 states and 253 transitions. [2024-11-14 04:34:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:34:04,129 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-11-14 04:34:04,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:04,139 INFO L225 Difference]: With dead ends: 157 [2024-11-14 04:34:04,140 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 04:34:04,147 INFO L431 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 [2024-11-14 04:34:04,151 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:04,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:34:04,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 04:34:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-14 04:34:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 68 states have internal predecessors, (95), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:34:04,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2024-11-14 04:34:04,202 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 19 [2024-11-14 04:34:04,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:04,204 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2024-11-14 04:34:04,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:34:04,204 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2024-11-14 04:34:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 04:34:04,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:04,207 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:04,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:34:04,207 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:04,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1764559827, now seen corresponding path program 1 times [2024-11-14 04:34:04,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:04,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155204967] [2024-11-14 04:34:04,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:04,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:34:04,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:34:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:34:04,954 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:34:04,955 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:34:04,957 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:34:04,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:34:04,964 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 04:34:04,999 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:34:05,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:34:05 BoogieIcfgContainer [2024-11-14 04:34:05,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:34:05,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:34:05,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:34:05,005 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:34:05,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:03" (3/4) ... [2024-11-14 04:34:05,009 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:34:05,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:34:05,011 INFO L158 Benchmark]: Toolchain (without parser) took 4232.73ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 30.1MB in the end (delta: 61.6MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-14 04:34:05,011 INFO L158 Benchmark]: CDTParser took 2.18ms. Allocated memory is still 83.9MB. Free memory was 41.4MB in the beginning and 41.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:34:05,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.51ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 76.4MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:34:05,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.52ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 73.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:34:05,012 INFO L158 Benchmark]: Boogie Preprocessor took 93.98ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:34:05,013 INFO L158 Benchmark]: RCFGBuilder took 1720.15ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 55.2MB in the end (delta: 16.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-11-14 04:34:05,013 INFO L158 Benchmark]: TraceAbstraction took 1795.74ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 30.1MB in the end (delta: 24.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-14 04:34:05,013 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 117.4MB. Free memory was 30.1MB in the beginning and 30.1MB in the end (delta: 9.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:34:05,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.18ms. Allocated memory is still 83.9MB. Free memory was 41.4MB in the beginning and 41.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.51ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 76.4MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.52ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 73.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 93.98ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1720.15ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 55.2MB in the end (delta: 16.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1795.74ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 30.1MB in the end (delta: 24.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 117.4MB. Free memory was 30.1MB in the beginning and 30.1MB in the end (delta: 9.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 264]: 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseOr at line 163, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 247. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L255] double x = __VERIFIER_nondet_double(); [L256] double y = __VERIFIER_nondet_double(); [L258] CALL, EXPR isnan_double(x) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L247] return x != x; [L258] RET, EXPR isnan_double(x) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, zero_atan2=0] [L258] isnan_double(x) || isnan_double(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, zero_atan2=0] [L258] COND TRUE isnan_double(x) || isnan_double(y) [L260] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1048575, ix=2146435073, lx=2147483648, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163] EXPR lx | -lx [L163] EXPR ix | ((lx | -lx) >> 31) [L163-L164] ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1048575, hy=-2147483648, ix=2146435073, iy=0, lx=2147483648, ly=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1048575, hy=-2147483648, ix=2146435073, iy=0, lx=2147483648, ly=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, zero_atan2=0] [L260] RET, EXPR __ieee754_atan2(y, x) [L260] double res = __ieee754_atan2(y, x); [L263] CALL, EXPR isnan_double(res) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000021, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L247] return x != x; [L263] RET, EXPR isnan_double(res) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000021, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L263] COND TRUE !isnan_double(res) [L264] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000021, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 97 mSDtfsCounter, 16 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=82occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 [2024-11-14 04:34:05,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E --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 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:34:08,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:34:08,266 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:34:08,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:34:08,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:34:08,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:34:08,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:34:08,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:34:08,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:34:08,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:34:08,364 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:34:08,364 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:34:08,364 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:34:08,364 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:34:08,364 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:34:08,364 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:34:08,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:34:08,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:34:08,365 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:34:08,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:34:08,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:34:08,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:34:08,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:34:08,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:34:08,366 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:34:08,366 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:34:08,366 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:34:08,366 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:34:08,367 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:34:08,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:34:08,367 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:34:08,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:34:08,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:34:08,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:34:08,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:34:08,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:34:08,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:34:08,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:34:08,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:34:08,369 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:34:08,369 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:34:08,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:34:08,369 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:34:08,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E 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 -> 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 [2024-11-14 04:34:08,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:34:08,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:34:08,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:34:08,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:34:08,759 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:34:08,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c Unable to find full path for "g++" [2024-11-14 04:34:10,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:34:11,242 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:34:11,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2024-11-14 04:34:11,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data/ba99f7ab1/c715523e9ed642479096d9b897f21ac2/FLAG4bd94bab7 [2024-11-14 04:34:11,292 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/data/ba99f7ab1/c715523e9ed642479096d9b897f21ac2 [2024-11-14 04:34:11,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:34:11,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:34:11,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:11,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:34:11,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:34:11,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:11,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec4d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11, skipping insertion in model container [2024-11-14 04:34:11,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:11,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:34:11,726 WARN L250 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_dd3e1e18-1c3c-4084-9dbb-07a32e148869/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2024-11-14 04:34:11,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:11,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:34:11,877 WARN L250 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_dd3e1e18-1c3c-4084-9dbb-07a32e148869/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2024-11-14 04:34:11,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:11,909 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:34:11,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11 WrapperNode [2024-11-14 04:34:11,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:11,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:11,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:34:11,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:34:11,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:11,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:11,998 INFO L138 Inliner]: procedures = 24, calls = 90, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 241 [2024-11-14 04:34:12,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:12,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:34:12,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:34:12,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:34:12,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:34:12,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:34:12,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:34:12,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:34:12,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (1/1) ... [2024-11-14 04:34:12,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:34:12,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:34:12,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:34:12,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:34:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2024-11-14 04:34:12,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2024-11-14 04:34:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:34:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-14 04:34:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2024-11-14 04:34:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-14 04:34:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:34:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:34:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-11-14 04:34:12,200 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-11-14 04:34:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-14 04:34:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-11-14 04:34:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-11-14 04:34:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 04:34:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:34:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:34:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 04:34:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:34:12,395 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:34:12,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:34:39,329 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2024-11-14 04:34:39,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:34:39,346 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:34:39,347 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-14 04:34:39,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:39 BoogieIcfgContainer [2024-11-14 04:34:39,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:34:39,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:34:39,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:34:39,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:34:39,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:34:11" (1/3) ... [2024-11-14 04:34:39,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3e9e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:39, skipping insertion in model container [2024-11-14 04:34:39,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:11" (2/3) ... [2024-11-14 04:34:39,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3e9e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:39, skipping insertion in model container [2024-11-14 04:34:39,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:39" (3/3) ... [2024-11-14 04:34:39,362 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2024-11-14 04:34:39,380 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:34:39,382 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0670.c that has 4 procedures, 97 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2024-11-14 04:34:39,453 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:34:39,472 INFO L333 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, 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;@6b9dafb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:34:39,473 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:34:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 85 states have (on average 1.6470588235294117) internal successors, (140), 86 states have internal predecessors, (140), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:34:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 04:34:39,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:39,488 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:39,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:39,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:39,495 INFO L85 PathProgramCache]: Analyzing trace with hash 877901787, now seen corresponding path program 1 times [2024-11-14 04:34:39,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:34:39,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132749044] [2024-11-14 04:34:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:39,518 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 [2024-11-14 04:34:39,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:34:39,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:34:39,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:34:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:40,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:34:40,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:40,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:34:40,107 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:34:40,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132749044] [2024-11-14 04:34:40,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132749044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:40,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:40,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:34:40,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441681157] [2024-11-14 04:34:40,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:40,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:34:40,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:34:40,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:34:40,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:34:40,145 INFO L87 Difference]: Start difference. First operand has 97 states, 85 states have (on average 1.6470588235294117) internal successors, (140), 86 states have internal predecessors, (140), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:34:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:40,176 INFO L93 Difference]: Finished difference Result 186 states and 300 transitions. [2024-11-14 04:34:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:34:40,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-11-14 04:34:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:40,186 INFO L225 Difference]: With dead ends: 186 [2024-11-14 04:34:40,186 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 04:34:40,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:34:40,194 INFO L432 NwaCegarLoop]: 137 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, 137 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 [2024-11-14 04:34:40,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:34:40,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 04:34:40,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 04:34:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 82 states have internal predecessors, (118), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:34:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2024-11-14 04:34:40,242 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 21 [2024-11-14 04:34:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:40,243 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2024-11-14 04:34:40,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:34:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2024-11-14 04:34:40,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 04:34:40,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:40,245 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:40,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:34:40,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:34:40,450 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:40,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1149042429, now seen corresponding path program 1 times [2024-11-14 04:34:40,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:34:40,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001831673] [2024-11-14 04:34:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:40,451 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 [2024-11-14 04:34:40,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:34:40,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:34:40,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:34:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:40,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:34:40,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:52,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:35:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 04:35:34,202 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:35:34,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001831673] [2024-11-14 04:35:34,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001831673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:35:34,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1761016808] [2024-11-14 04:35:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:35:34,202 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:35:34,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:35:34,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:35:34,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:35:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:37,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:35:37,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:35:50,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:35:50,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1761016808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:35:50,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:35:50,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 11] total 24 [2024-11-14 04:35:50,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206594683] [2024-11-14 04:35:50,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:35:50,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:35:50,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:35:50,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:35:50,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-11-14 04:35:50,028 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:35:54,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:35:57,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:35:59,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:36:01,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:36:02,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:36:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:04,839 INFO L93 Difference]: Finished difference Result 147 states and 214 transitions. [2024-11-14 04:36:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:36:04,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-14 04:36:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:04,852 INFO L225 Difference]: With dead ends: 147 [2024-11-14 04:36:04,852 INFO L226 Difference]: Without dead ends: 142 [2024-11-14 04:36:04,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 48.0s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:36:04,854 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 62 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:04,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 952 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2024-11-14 04:36:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-14 04:36:04,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 101. [2024-11-14 04:36:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.4) internal successors, (126), 90 states have internal predecessors, (126), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:36:04,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 140 transitions. [2024-11-14 04:36:04,878 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 140 transitions. Word has length 23 [2024-11-14 04:36:04,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:04,879 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 140 transitions. [2024-11-14 04:36:04,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:36:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 140 transitions. [2024-11-14 04:36:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:36:04,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:04,883 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:36:04,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:36:05,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:36:05,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:36:05,284 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:36:05,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:05,285 INFO L85 PathProgramCache]: Analyzing trace with hash -842018031, now seen corresponding path program 1 times [2024-11-14 04:36:05,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:36:05,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902560141] [2024-11-14 04:36:05,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:05,286 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 [2024-11-14 04:36:05,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:36:05,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:36:05,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:36:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:36:05,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:36:05,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:36:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:36:11,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:36:11,827 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:36:11,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902560141] [2024-11-14 04:36:11,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902560141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:36:11,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:36:11,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 04:36:11,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266194192] [2024-11-14 04:36:11,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:36:11,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:36:11,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:36:11,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:36:11,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:36:11,829 INFO L87 Difference]: Start difference. First operand 101 states and 140 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:36:18,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:18,836 INFO L93 Difference]: Finished difference Result 195 states and 274 transitions. [2024-11-14 04:36:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:36:18,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-11-14 04:36:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:18,840 INFO L225 Difference]: With dead ends: 195 [2024-11-14 04:36:18,840 INFO L226 Difference]: Without dead ends: 155 [2024-11-14 04:36:18,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:36:18,842 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 197 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:18,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 901 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-14 04:36:18,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-14 04:36:18,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 110. [2024-11-14 04:36:18,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 99 states have (on average 1.4141414141414141) internal successors, (140), 99 states have internal predecessors, (140), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:36:18,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 154 transitions. [2024-11-14 04:36:18,858 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 154 transitions. Word has length 26 [2024-11-14 04:36:18,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:18,858 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 154 transitions. [2024-11-14 04:36:18,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:36:18,859 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 154 transitions. [2024-11-14 04:36:18,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 04:36:18,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:18,860 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:36:18,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:36:19,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:36:19,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:36:19,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1367643615, now seen corresponding path program 1 times [2024-11-14 04:36:19,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:36:19,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375451623] [2024-11-14 04:36:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:19,066 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 [2024-11-14 04:36:19,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:36:19,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:36:19,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:36:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:36:19,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:36:19,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:36:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 04:36:31,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:37:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:37:00,049 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:37:00,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375451623] [2024-11-14 04:37:00,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375451623] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:37:00,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [749610094] [2024-11-14 04:37:00,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:00,050 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:37:00,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:37:00,053 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:37:00,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 04:37:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:02,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:37:02,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:37:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:37:18,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:37:18,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [749610094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:18,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:37:18,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 10] total 24 [2024-11-14 04:37:18,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712963652] [2024-11-14 04:37:18,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:18,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:37:18,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:37:18,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:37:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-11-14 04:37:18,321 INFO L87 Difference]: Start difference. First operand 110 states and 154 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:37:22,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:24,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:25,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:27,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:32,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:35,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:36,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:38,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:39,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:37:41,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:41,804 INFO L93 Difference]: Finished difference Result 145 states and 208 transitions. [2024-11-14 04:37:41,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:37:41,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-14 04:37:41,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:41,807 INFO L225 Difference]: With dead ends: 145 [2024-11-14 04:37:41,807 INFO L226 Difference]: Without dead ends: 140 [2024-11-14 04:37:41,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 39.3s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:37:41,809 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 61 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:41,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1630 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 1 Unknown, 0 Unchecked, 21.9s Time] [2024-11-14 04:37:41,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-14 04:37:41,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 110. [2024-11-14 04:37:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 99 states have (on average 1.393939393939394) internal successors, (138), 99 states have internal predecessors, (138), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:37:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 152 transitions. [2024-11-14 04:37:41,829 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 152 transitions. Word has length 28 [2024-11-14 04:37:41,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:41,830 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 152 transitions. [2024-11-14 04:37:41,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:37:41,830 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2024-11-14 04:37:41,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 04:37:41,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:41,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:41,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 04:37:42,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:37:42,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:37:42,233 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:37:42,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash 939048971, now seen corresponding path program 1 times [2024-11-14 04:37:42,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:37:42,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741675185] [2024-11-14 04:37:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:42,235 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 [2024-11-14 04:37:42,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:37:42,237 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:37:42,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 (8)] Waiting until timeout for monitored process [2024-11-14 04:37:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:42,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:37:42,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:37:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:37:49,144 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:37:49,145 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:37:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741675185] [2024-11-14 04:37:49,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741675185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:49,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:49,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 04:37:49,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784364098] [2024-11-14 04:37:49,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:49,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:37:49,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:37:49,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:37:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:37:49,147 INFO L87 Difference]: Start difference. First operand 110 states and 152 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:56,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:56,844 INFO L93 Difference]: Finished difference Result 210 states and 293 transitions. [2024-11-14 04:37:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:37:56,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-11-14 04:37:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:56,847 INFO L225 Difference]: With dead ends: 210 [2024-11-14 04:37:56,847 INFO L226 Difference]: Without dead ends: 155 [2024-11-14 04:37:56,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-14 04:37:56,849 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 247 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:56,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 900 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-14 04:37:56,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-14 04:37:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 111. [2024-11-14 04:37:56,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.39) internal successors, (139), 100 states have internal predecessors, (139), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:37:56,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 153 transitions. [2024-11-14 04:37:56,862 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 153 transitions. Word has length 28 [2024-11-14 04:37:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:56,862 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 153 transitions. [2024-11-14 04:37:56,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 153 transitions. [2024-11-14 04:37:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 04:37:56,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:56,863 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:56,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 (8)] Ended with exit code 0 [2024-11-14 04:37:57,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:37:57,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:37:57,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash 952821007, now seen corresponding path program 1 times [2024-11-14 04:37:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:37:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168428406] [2024-11-14 04:37:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:57,065 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 [2024-11-14 04:37:57,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:37:57,070 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:37:57,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 (9)] Waiting until timeout for monitored process [2024-11-14 04:37:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:57,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:37:57,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:38:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:38:02,547 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:38:02,547 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:38:02,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168428406] [2024-11-14 04:38:02,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168428406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:02,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:38:02,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 04:38:02,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783619853] [2024-11-14 04:38:02,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:02,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:38:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:38:02,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:38:02,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:38:02,549 INFO L87 Difference]: Start difference. First operand 111 states and 153 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:38:07,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:08,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:09,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:38:09,770 INFO L93 Difference]: Finished difference Result 177 states and 245 transitions. [2024-11-14 04:38:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:38:09,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-11-14 04:38:09,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:38:09,772 INFO L225 Difference]: With dead ends: 177 [2024-11-14 04:38:09,772 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 04:38:09,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:38:09,774 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 11 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:38:09,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 942 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-14 04:38:09,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 04:38:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 04:38:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 82 states have internal predecessors, (115), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:38:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 129 transitions. [2024-11-14 04:38:09,783 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 129 transitions. Word has length 28 [2024-11-14 04:38:09,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:38:09,783 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 129 transitions. [2024-11-14 04:38:09,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:38:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 129 transitions. [2024-11-14 04:38:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 04:38:09,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:09,785 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:38:09,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 (9)] Forceful destruction successful, exit code 0 [2024-11-14 04:38:09,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:38:09,986 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:38:09,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:09,987 INFO L85 PathProgramCache]: Analyzing trace with hash 802799797, now seen corresponding path program 1 times [2024-11-14 04:38:09,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:38:09,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223395963] [2024-11-14 04:38:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:09,987 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 [2024-11-14 04:38:09,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:38:09,989 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:38:09,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 (10)] Waiting until timeout for monitored process [2024-11-14 04:38:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:10,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:38:10,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:38:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 04:38:14,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:38:14,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:38:14,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223395963] [2024-11-14 04:38:14,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223395963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:14,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:38:14,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 04:38:14,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092537149] [2024-11-14 04:38:14,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:14,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:38:14,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:38:14,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:38:14,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:38:14,853 INFO L87 Difference]: Start difference. First operand 93 states and 129 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:38:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:38:17,179 INFO L93 Difference]: Finished difference Result 96 states and 131 transitions. [2024-11-14 04:38:17,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:38:17,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-14 04:38:17,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:38:17,180 INFO L225 Difference]: With dead ends: 96 [2024-11-14 04:38:17,180 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:38:17,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:38:17,182 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:38:17,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:38:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:38:17,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:38:17,183 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) [2024-11-14 04:38:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:38:17,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2024-11-14 04:38:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:38:17,186 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:38:17,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:38:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:38:17,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:38:17,189 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:38:17,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 (10)] Ended with exit code 0 [2024-11-14 04:38:17,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:38:17,393 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:38:17,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:38:21,375 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:38:21,387 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:38:21,388 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:38:21,392 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 04:38:21,393 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:38:21,393 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 04:38:21,393 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:38:21,399 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function fabs_double [2024-11-14 04:38:21,399 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function fabs_double [2024-11-14 04:38:21,399 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function fabs_double [2024-11-14 04:38:21,402 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:38:21,403 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:38:21,404 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function atan_double [2024-11-14 04:38:21,404 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function atan_double [2024-11-14 04:38:21,404 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function atan_double [2024-11-14 04:38:21,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:38:21 BoogieIcfgContainer [2024-11-14 04:38:21,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:38:21,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:38:21,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:38:21,406 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:38:21,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:39" (3/4) ... [2024-11-14 04:38:21,410 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:38:21,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2024-11-14 04:38:21,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2024-11-14 04:38:21,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2024-11-14 04:38:21,424 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-14 04:38:21,425 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-14 04:38:21,425 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 04:38:21,426 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:38:21,572 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:38:21,572 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:38:21,573 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:38:21,574 INFO L158 Benchmark]: Toolchain (without parser) took 250275.65ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 81.8MB in the end (delta: 10.4MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2024-11-14 04:38:21,574 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:38:21,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.99ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 76.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:38:21,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.02ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 74.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:38:21,576 INFO L158 Benchmark]: Boogie Preprocessor took 103.05ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:38:21,577 INFO L158 Benchmark]: RCFGBuilder took 27242.00ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 79.9MB in the end (delta: -8.7MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-14 04:38:21,577 INFO L158 Benchmark]: TraceAbstraction took 222052.82ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 30.2MB in the end (delta: 49.3MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2024-11-14 04:38:21,578 INFO L158 Benchmark]: Witness Printer took 167.42ms. Allocated memory is still 117.4MB. Free memory was 30.2MB in the beginning and 81.8MB in the end (delta: -51.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:38:21,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.99ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 76.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.02ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 74.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 103.05ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 27242.00ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 79.9MB in the end (delta: -8.7MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * TraceAbstraction took 222052.82ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 30.2MB in the end (delta: 49.3MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Witness Printer took 167.42ms. Allocated memory is still 117.4MB. Free memory was 30.2MB in the beginning and 81.8MB in the end (delta: -51.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function fabs_double - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function fabs_double - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function fabs_double - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function atan_double - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function atan_double - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function atan_double * 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: 264]: 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 4 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 218.0s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 62.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 594 SdHoareTripleChecker+Valid, 53.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 582 mSDsluCounter, 5533 SdHoareTripleChecker+Invalid, 52.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4715 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 644 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 818 mSDtfsCounter, 644 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 200 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 105.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=5, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 160 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 8.6s SatisfiabilityAnalysisTime, 143.3s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 276 ConstructedInterpolants, 55 QuantifiedInterpolants, 2201 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1560 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 44/57 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: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 19]: Procedure Contract for fabs_double Derived contract for procedure fabs_double. Requires: 0 Ensures: (0 && ((((((((one_atan == \old(one_atan)) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (huge_atan == \old(huge_atan))) && (tiny_atan2 == \old(tiny_atan2))) && (zero_atan2 == \old(zero_atan2))) && (pi_lo_atan2 == \old(pi_lo_atan2)))) - ProcedureContractResult [Line: 247]: Procedure Contract for isnan_double Derived contract for procedure isnan_double. Ensures: (((1 == \result) || (0 == \result)) && (((((((((((atanhi_atan == \old(atanhi_atan)) && (atanlo_atan == \old(atanlo_atan))) && (aT_atan == \old(aT_atan))) && (one_atan == \old(one_atan))) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (huge_atan == \old(huge_atan))) && (tiny_atan2 == \old(tiny_atan2))) && (zero_atan2 == \old(zero_atan2))) && (pi_lo_atan2 == \old(pi_lo_atan2)))) - ProcedureContractResult [Line: 66]: Procedure Contract for atan_double Derived contract for procedure atan_double. Requires: 0 Ensures: (0 && ((((((((one_atan == \old(one_atan)) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (huge_atan == \old(huge_atan))) && (tiny_atan2 == \old(tiny_atan2))) && (zero_atan2 == \old(zero_atan2))) && (pi_lo_atan2 == \old(pi_lo_atan2)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:38:21,804 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-14 04:38:21,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3e1e18-1c3c-4084-9dbb-07a32e148869/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE