./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_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_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:27:44,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:27:44,229 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:27:44,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:27:44,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:27:44,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:27:44,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:27:44,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:27:44,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:27:44,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:27:44,282 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:27:44,283 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:27:44,283 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:27:44,283 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:27:44,283 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:27:44,283 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:27:44,284 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:27:44,284 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:27:44,285 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:27:44,285 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:27:44,285 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:27:44,285 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:27:44,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:27:44,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:27:44,286 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:27:44,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:27:44,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:27:44,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:27:44,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:27:44,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:27:44,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:27:44,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:27:44,288 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:27:44,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:27:44,288 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:27:44,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:27:44,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:27:44,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:27:44,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:27:44,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:27:44,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:27:44,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:27:44,289 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:27:44,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:27:44,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:27:44,289 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:27:44,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:27:44,289 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_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2024-11-14 03:27:44,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:27:44,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:27:44,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:27:44,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:27:44,702 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:27:44,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c Unable to find full path for "g++" [2024-11-14 03:27:47,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:27:47,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:27:47,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2024-11-14 03:27:47,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data/b1565d5e4/2f71a6a942204598b14dcc410127dcae/FLAGfc05b6025 [2024-11-14 03:27:47,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data/b1565d5e4/2f71a6a942204598b14dcc410127dcae [2024-11-14 03:27:47,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:27:47,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:27:47,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:27:47,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:27:47,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:27:47,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:27:47" (1/1) ... [2024-11-14 03:27:47,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1fb782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:47, skipping insertion in model container [2024-11-14 03:27:47,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:27:47" (1/1) ... [2024-11-14 03:27:47,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:27:47,945 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_7fee916f-0946-4a58-8eb9-edec36b8aef4/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2024-11-14 03:27:47,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:27:47,965 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:27:48,010 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_7fee916f-0946-4a58-8eb9-edec36b8aef4/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2024-11-14 03:27:48,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:27:48,034 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:27:48,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48 WrapperNode [2024-11-14 03:27:48,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:27:48,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:27:48,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:27:48,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:27:48,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,091 INFO L138 Inliner]: procedures = 21, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 250 [2024-11-14 03:27:48,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:27:48,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:27:48,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:27:48,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:27:48,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:27:48,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:27:48,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:27:48,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:27:48,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (1/1) ... [2024-11-14 03:27:48,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:27:48,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:27:48,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:27:48,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:27:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:27:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:27:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-14 03:27:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:27:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 03:27:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:27:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-11-14 03:27:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-11-14 03:27:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 03:27:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2024-11-14 03:27:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2024-11-14 03:27:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:27:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:27:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:27:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 03:27:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2024-11-14 03:27:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2024-11-14 03:27:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:27:48,370 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:27:48,372 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:27:49,012 INFO L? ?]: Removed 69 outVars from TransFormulas that were not future-live. [2024-11-14 03:27:49,012 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:27:49,248 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:27:49,248 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-14 03:27:49,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:27:49 BoogieIcfgContainer [2024-11-14 03:27:49,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:27:49,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:27:49,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:27:49,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:27:49,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:27:47" (1/3) ... [2024-11-14 03:27:49,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d93eb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:27:49, skipping insertion in model container [2024-11-14 03:27:49,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:48" (2/3) ... [2024-11-14 03:27:49,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d93eb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:27:49, skipping insertion in model container [2024-11-14 03:27:49,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:27:49" (3/3) ... [2024-11-14 03:27:49,261 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2024-11-14 03:27:49,281 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:27:49,284 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0670.c that has 4 procedures, 78 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-14 03:27:49,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:27:49,397 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;@3ddb1843, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:27:49,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:27:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 67 states have internal predecessors, (110), 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 03:27:49,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:27:49,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:27:49,412 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 03:27:49,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:27:49,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:27:49,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1506110347, now seen corresponding path program 1 times [2024-11-14 03:27:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:27:49,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691804520] [2024-11-14 03:27:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:27:49,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:27:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:27:49,888 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 03:27:49,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:27:49,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691804520] [2024-11-14 03:27:49,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691804520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:27:49,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:27:49,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:27:49,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177722192] [2024-11-14 03:27:49,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:27:49,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:27:49,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:27:49,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:27:49,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:27:49,933 INFO L87 Difference]: Start difference. First operand has 78 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 67 states have internal predecessors, (110), 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 03:27:50,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:27:50,099 INFO L93 Difference]: Finished difference Result 149 states and 241 transitions. [2024-11-14 03:27:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:27:50,102 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 03:27:50,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:27:50,110 INFO L225 Difference]: With dead ends: 149 [2024-11-14 03:27:50,110 INFO L226 Difference]: Without dead ends: 75 [2024-11-14 03:27:50,114 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 03:27:50,122 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:27:50,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:27:50,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-14 03:27:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-14 03:27:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 64 states have (on average 1.421875) internal successors, (91), 64 states have internal predecessors, (91), 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 03:27:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2024-11-14 03:27:50,166 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 19 [2024-11-14 03:27:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:27:50,168 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2024-11-14 03:27:50,168 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 03:27:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2024-11-14 03:27:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:27:50,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:27:50,171 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 03:27:50,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:27:50,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:27:50,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:27:50,172 INFO L85 PathProgramCache]: Analyzing trace with hash -695473731, now seen corresponding path program 1 times [2024-11-14 03:27:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:27:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039610647] [2024-11-14 03:27:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:27:50,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:27:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:27:50,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:27:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:27:50,526 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:27:50,527 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:27:50,529 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:27:50,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:27:50,537 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:27:50,593 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:27:50,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:27:50 BoogieIcfgContainer [2024-11-14 03:27:50,602 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:27:50,603 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:27:50,603 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:27:50,603 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:27:50,604 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:27:49" (3/4) ... [2024-11-14 03:27:50,607 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:27:50,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:27:50,609 INFO L158 Benchmark]: Toolchain (without parser) took 3027.09ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 37.4MB in the end (delta: 54.1MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2024-11-14 03:27:50,610 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:27:50,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.71ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 76.6MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:27:50,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.84ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:27:50,611 INFO L158 Benchmark]: Boogie Preprocessor took 39.39ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 72.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:27:50,612 INFO L158 Benchmark]: RCFGBuilder took 1117.34ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 88.3MB in the end (delta: -15.5MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-11-14 03:27:50,613 INFO L158 Benchmark]: TraceAbstraction took 1349.98ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 37.4MB in the end (delta: 50.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-14 03:27:50,614 INFO L158 Benchmark]: Witness Printer took 5.32ms. Allocated memory is still 117.4MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:27:50,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.71ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 76.6MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.84ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.39ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 72.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1117.34ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 88.3MB in the end (delta: -15.5MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1349.98ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 37.4MB in the end (delta: 50.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 5.32ms. Allocated memory is still 117.4MB. Free memory is still 37.4MB. 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: 236]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 140. Possible FailurePath: [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L120-L121] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L226] float x = __VERIFIER_nondet_float(); [L227] float y = __VERIFIER_nondet_float(); [L229] CALL, EXPR isnan_float(x) VAL [\old(x)=1000000000000000000000000000035, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; [L229] RET, EXPR isnan_float(x) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000035, zero_atan2=0] [L229] isnan_float(x) || isnan_float(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000035, zero_atan2=0] [L229] COND TRUE isnan_float(x) || isnan_float(y) [L232] CALL, EXPR __ieee754_atan2f(y, x) [L124] float z; [L125] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000035, y=1000000000000000000000000000034, zero_atan2=0] [L128] ieee_float_shape_type gf_u; [L129] gf_u.value = (x) [L130] EXPR gf_u.word [L130] (hx) = gf_u.word [L132] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, ix=2139095042, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000035, y=1000000000000000000000000000034, zero_atan2=0] [L134] ieee_float_shape_type gf_u; [L135] gf_u.value = (y) [L136] EXPR gf_u.word [L136] (hy) = gf_u.word [L138] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, hy=-8388607, ix=2139095042, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000035, y=1000000000000000000000000000034, zero_atan2=0] [L139] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L140] return x + y; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, hy=-8388607, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000035, y=1000000000000000000000000000034, zero_atan2=0] [L232] RET, EXPR __ieee754_atan2f(y, x) [L232] float res = __ieee754_atan2f(y, x); [L235] CALL, EXPR isnan_float(res) VAL [\old(x)=1000000000000000000000000000040, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; [L235] RET, EXPR isnan_float(res) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000040, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L235] COND TRUE !isnan_float(res) [L236] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000040, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 96 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred 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, 0.2s 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 03:27:50,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:27:53,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:27:54,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:27:54,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:27:54,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:27:54,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:27:54,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:27:54,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:27:54,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:27:54,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:27:54,199 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:27:54,199 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:27:54,200 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:27:54,200 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:27:54,200 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:27:54,200 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:27:54,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:27:54,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:27:54,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:27:54,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:27:54,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:27:54,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:27:54,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:27:54,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:27:54,203 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:27:54,203 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:27:54,203 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:27:54,204 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:27:54,204 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:27:54,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:27:54,204 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:27:54,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:27:54,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:27:54,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:27:54,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:27:54,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:27:54,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:27:54,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:27:54,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:27:54,206 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:27:54,206 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:27:54,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:27:54,207 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:27:54,207 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_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2024-11-14 03:27:54,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:27:54,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:27:54,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:27:54,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:27:54,636 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:27:54,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c Unable to find full path for "g++" [2024-11-14 03:27:57,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:27:57,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:27:57,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2024-11-14 03:27:57,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data/8de5e5797/bc860b77b1674308926eaf850deeb935/FLAGf580eda85 [2024-11-14 03:27:57,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/data/8de5e5797/bc860b77b1674308926eaf850deeb935 [2024-11-14 03:27:57,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:27:57,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:27:57,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:27:57,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:27:57,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:27:57,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:27:57" (1/1) ... [2024-11-14 03:27:57,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2805d563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:57, skipping insertion in model container [2024-11-14 03:27:57,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:27:57" (1/1) ... [2024-11-14 03:27:57,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:27:57,862 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_7fee916f-0946-4a58-8eb9-edec36b8aef4/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2024-11-14 03:27:57,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:27:57,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:27:58,018 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_7fee916f-0946-4a58-8eb9-edec36b8aef4/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2024-11-14 03:27:58,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:27:58,064 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:27:58,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58 WrapperNode [2024-11-14 03:27:58,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:27:58,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:27:58,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:27:58,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:27:58,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,153 INFO L138 Inliner]: procedures = 24, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 232 [2024-11-14 03:27:58,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:27:58,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:27:58,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:27:58,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:27:58,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:27:58,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:27:58,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:27:58,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:27:58,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (1/1) ... [2024-11-14 03:27:58,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:27:58,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:27:58,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:27:58,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:27:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:27:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 03:27:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:27:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:27:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 03:27:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-11-14 03:27:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-11-14 03:27:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2024-11-14 03:27:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2024-11-14 03:27:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:27:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-14 03:27:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:27:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:27:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 03:27:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2024-11-14 03:27:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2024-11-14 03:27:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:27:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:27:58,532 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:27:58,535 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:28:11,306 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-14 03:28:11,306 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:28:11,327 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:28:11,328 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-14 03:28:11,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:28:11 BoogieIcfgContainer [2024-11-14 03:28:11,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:28:11,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:28:11,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:28:11,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:28:11,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:27:57" (1/3) ... [2024-11-14 03:28:11,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4724d260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:28:11, skipping insertion in model container [2024-11-14 03:28:11,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:27:58" (2/3) ... [2024-11-14 03:28:11,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4724d260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:28:11, skipping insertion in model container [2024-11-14 03:28:11,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:28:11" (3/3) ... [2024-11-14 03:28:11,344 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2024-11-14 03:28:11,364 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:28:11,366 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0670.c that has 4 procedures, 95 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-14 03:28:11,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:28:11,458 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;@3cbfdae4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:28:11,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:28:11,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 83 states have (on average 1.6385542168674698) internal successors, (136), 84 states have internal predecessors, (136), 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 03:28:11,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:28:11,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:28:11,474 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 03:28:11,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:28:11,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:28:11,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1167514674, now seen corresponding path program 1 times [2024-11-14 03:28:11,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:28:11,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063229776] [2024-11-14 03:28:11,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:11,496 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 03:28:11,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:28:11,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:11,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:12,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:28:12,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:28:12,732 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 03:28:12,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:28:12,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:28:12,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063229776] [2024-11-14 03:28:12,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063229776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:28:12,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:28:12,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:28:12,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086541309] [2024-11-14 03:28:12,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:28:12,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:28:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:28:12,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:28:12,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:28:12,782 INFO L87 Difference]: Start difference. First operand has 95 states, 83 states have (on average 1.6385542168674698) internal successors, (136), 84 states have internal predecessors, (136), 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 03:28:12,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:28:12,864 INFO L93 Difference]: Finished difference Result 182 states and 292 transitions. [2024-11-14 03:28:12,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:28:12,866 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 03:28:12,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:28:12,873 INFO L225 Difference]: With dead ends: 182 [2024-11-14 03:28:12,874 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 03:28:12,878 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 03:28:12,882 INFO L432 NwaCegarLoop]: 135 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, 135 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 03:28:12,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:28:12,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 03:28:12,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 03:28:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.45) internal successors, (116), 80 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 03:28:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2024-11-14 03:28:12,942 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 21 [2024-11-14 03:28:12,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:28:12,943 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2024-11-14 03:28:12,944 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 03:28:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2024-11-14 03:28:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:28:12,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:28:12,947 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 03:28:12,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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)] Ended with exit code 0 [2024-11-14 03:28:13,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:13,148 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:28:13,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:28:13,149 INFO L85 PathProgramCache]: Analyzing trace with hash 453921430, now seen corresponding path program 1 times [2024-11-14 03:28:13,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:28:13,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715829790] [2024-11-14 03:28:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:13,151 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 03:28:13,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:28:13,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:13,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:14,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:28:14,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:28:18,610 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 03:28:18,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:28:30,587 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 03:28:30,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:28:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715829790] [2024-11-14 03:28:30,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715829790] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:28:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [173084780] [2024-11-14 03:28:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:30,588 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:28:30,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:28:30,591 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:28:30,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 03:28:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:33,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:28:33,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:28:37,051 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 03:28:37,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:28:37,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [173084780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:28:37,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:28:37,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 11] total 24 [2024-11-14 03:28:37,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118406670] [2024-11-14 03:28:37,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:28:37,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:28:37,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:28:37,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:28:37,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-11-14 03:28:37,054 INFO L87 Difference]: Start difference. First operand 91 states and 130 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 03:28:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:28:41,278 INFO L93 Difference]: Finished difference Result 145 states and 212 transitions. [2024-11-14 03:28:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:28:41,283 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 03:28:41,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:28:41,284 INFO L225 Difference]: With dead ends: 145 [2024-11-14 03:28:41,285 INFO L226 Difference]: Without dead ends: 140 [2024-11-14 03:28:41,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:28:41,286 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 62 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:28:41,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 936 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-14 03:28:41,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-14 03:28:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 99. [2024-11-14 03:28:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 88 states have internal predecessors, (124), 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 03:28:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2024-11-14 03:28:41,299 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 23 [2024-11-14 03:28:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:28:41,299 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2024-11-14 03:28:41,300 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 03:28:41,300 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2024-11-14 03:28:41,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 03:28:41,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:28:41,301 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 03:28:41,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:28:41,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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)] Ended with exit code 0 [2024-11-14 03:28:41,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:41,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:28:41,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:28:41,702 INFO L85 PathProgramCache]: Analyzing trace with hash 723550897, now seen corresponding path program 1 times [2024-11-14 03:28:41,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:28:41,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161569971] [2024-11-14 03:28:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:41,703 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 03:28:41,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:28:41,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:41,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:42,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:28:42,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:28:44,110 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 03:28:44,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:28:44,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:28:44,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161569971] [2024-11-14 03:28:44,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161569971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:28:44,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:28:44,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:28:44,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201264957] [2024-11-14 03:28:44,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:28:44,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:28:44,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:28:44,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:28:44,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:28:44,112 INFO L87 Difference]: Start difference. First operand 99 states and 138 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 03:28:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:28:45,536 INFO L93 Difference]: Finished difference Result 175 states and 249 transitions. [2024-11-14 03:28:45,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:28:45,537 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 03:28:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:28:45,538 INFO L225 Difference]: With dead ends: 175 [2024-11-14 03:28:45,539 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 03:28:45,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:28:45,540 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 11 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:28:45,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 945 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:28:45,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 03:28:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 03:28:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.4375) internal successors, (115), 80 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 03:28:45,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2024-11-14 03:28:45,552 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 26 [2024-11-14 03:28:45,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:28:45,555 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2024-11-14 03:28:45,555 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 03:28:45,555 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2024-11-14 03:28:45,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:28:45,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:28:45,556 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 03:28:45,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:45,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:45,757 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:28:45,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:28:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1248432577, now seen corresponding path program 1 times [2024-11-14 03:28:45,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:28:45,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823740490] [2024-11-14 03:28:45,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:45,758 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 03:28:45,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:28:45,760 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:45,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:28:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:46,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:28:46,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:28:49,562 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 03:28:49,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:28:57,096 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 03:28:57,096 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:28:57,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823740490] [2024-11-14 03:28:57,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823740490] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:28:57,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1109206565] [2024-11-14 03:28:57,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:57,097 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:28:57,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:28:57,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:28:57,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 03:28:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:00,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 03:29:00,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:03,842 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 03:29:03,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:03,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1109206565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:03,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:29:03,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 10] total 24 [2024-11-14 03:29:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107383945] [2024-11-14 03:29:03,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:03,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:29:03,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:29:03,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:29:03,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-11-14 03:29:03,845 INFO L87 Difference]: Start difference. First operand 91 states and 129 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 03:29:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:07,409 INFO L93 Difference]: Finished difference Result 96 states and 134 transitions. [2024-11-14 03:29:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:29:07,410 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 03:29:07,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:07,411 INFO L225 Difference]: With dead ends: 96 [2024-11-14 03:29:07,411 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 03:29:07,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:29:07,412 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 61 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:07,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1097 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 03:29:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 03:29:07,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 03:29:07,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.4125) internal successors, (113), 80 states have internal predecessors, (113), 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 03:29:07,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-11-14 03:29:07,431 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 28 [2024-11-14 03:29:07,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:07,431 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-11-14 03:29:07,431 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 03:29:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-11-14 03:29:07,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 03:29:07,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:07,434 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 03:29:07,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:29:07,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:29:07,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:29:07,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:29:07,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash 869159528, now seen corresponding path program 1 times [2024-11-14 03:29:07,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:29:07,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458878442] [2024-11-14 03:29:07,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:07,836 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 03:29:07,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:29:07,839 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:29:07,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:29:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:08,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:29:08,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:09,775 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 03:29:09,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:09,775 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:29:09,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458878442] [2024-11-14 03:29:09,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458878442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:09,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:09,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:29:09,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789421743] [2024-11-14 03:29:09,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:09,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:29:09,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:29:09,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:29:09,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:29:09,776 INFO L87 Difference]: Start difference. First operand 91 states and 127 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 03:29:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:10,528 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2024-11-14 03:29:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:29:10,528 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 03:29:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:10,529 INFO L225 Difference]: With dead ends: 94 [2024-11-14 03:29:10,529 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:29:10,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:29:10,535 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:10,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:29:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:29:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:29:10,536 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 03:29:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:29:10,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2024-11-14 03:29:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:10,537 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:29:10,537 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 03:29:10,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:29:10,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:29:10,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:29:10,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:29:10,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 03:29:10,752 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-14 03:29:10,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:29:11,207 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:29:11,217 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-14 03:29:11,217 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-14 03:29:11,218 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-14 03:29:11,219 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-14 03:29:11,219 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 03:29:11,219 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-14 03:29:11,223 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-14 03:29:11,223 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-14 03:29:11,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function fabs_float [2024-11-14 03:29:11,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function fabs_float [2024-11-14 03:29:11,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function fabs_float [2024-11-14 03:29:11,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function atan_float [2024-11-14 03:29:11,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function atan_float [2024-11-14 03:29:11,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function atan_float [2024-11-14 03:29:11,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:29:11 BoogieIcfgContainer [2024-11-14 03:29:11,227 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:29:11,228 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:29:11,228 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:29:11,228 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:29:11,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:28:11" (3/4) ... [2024-11-14 03:29:11,232 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:29:11,236 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2024-11-14 03:29:11,237 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2024-11-14 03:29:11,237 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2024-11-14 03:29:11,249 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-14 03:29:11,249 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-14 03:29:11,249 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 03:29:11,250 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:29:11,344 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:29:11,344 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:29:11,344 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:29:11,346 INFO L158 Benchmark]: Toolchain (without parser) took 73876.91ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 45.8MB in the end (delta: 13.8MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-14 03:29:11,346 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 83.9MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:29:11,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.85ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 44.1MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:29:11,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.24ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 41.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:29:11,348 INFO L158 Benchmark]: Boogie Preprocessor took 83.82ms. Allocated memory is still 83.9MB. Free memory was 41.7MB in the beginning and 39.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:29:11,348 INFO L158 Benchmark]: RCFGBuilder took 13087.16ms. Allocated memory is still 83.9MB. Free memory was 39.3MB in the beginning and 45.2MB in the end (delta: -5.9MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-11-14 03:29:11,349 INFO L158 Benchmark]: TraceAbstraction took 59894.42ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 53.3MB in the end (delta: -8.6MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2024-11-14 03:29:11,350 INFO L158 Benchmark]: Witness Printer took 116.35ms. Allocated memory is still 83.9MB. Free memory was 53.3MB in the beginning and 45.8MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:29:11,352 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 83.9MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.85ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 44.1MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.24ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 41.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 83.82ms. Allocated memory is still 83.9MB. Free memory was 41.7MB in the beginning and 39.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 13087.16ms. Allocated memory is still 83.9MB. Free memory was 39.3MB in the beginning and 45.2MB in the end (delta: -5.9MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * TraceAbstraction took 59894.42ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 53.3MB in the end (delta: -8.6MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Witness Printer took 116.35ms. Allocated memory is still 83.9MB. Free memory was 53.3MB in the beginning and 45.8MB in the end (delta: 7.5MB). 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~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function fabs_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function fabs_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function fabs_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function atan_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function atan_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function atan_float * 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: 236]: 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, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.3s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 3184 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2675 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 509 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 161 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 25.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=2, InterpolantAutomatonStates: 38, 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, 5 MinimizatonAttempts, 41 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 10.2s SatisfiabilityAnalysisTime, 36.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 35 QuantifiedInterpolants, 1541 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1046 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 38/51 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: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 15]: Procedure Contract for isnan_float Derived contract for procedure isnan_float. Ensures: (((0 == \result) || (1 == \result)) && (((((((((((atanhi_atan == \old(atanhi_atan)) && (atanlo_atan == \old(atanlo_atan))) && (aT_atan == \old(aT_atan))) && (one_atan == \old(one_atan))) && (huge_atan == \old(huge_atan))) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (tiny_atan2 == \old(tiny_atan2))) && (zero_atan2 == \old(zero_atan2))) && (pi_lo_atan2 == \old(pi_lo_atan2)))) - ProcedureContractResult [Line: 17]: Procedure Contract for fabs_float Derived contract for procedure fabs_float. Requires: 0 Ensures: (0 && ((((((((one_atan == \old(one_atan)) && (huge_atan == \old(huge_atan))) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (tiny_atan2 == \old(tiny_atan2))) && (zero_atan2 == \old(zero_atan2))) && (pi_lo_atan2 == \old(pi_lo_atan2)))) - ProcedureContractResult [Line: 56]: Procedure Contract for atan_float Derived contract for procedure atan_float. Requires: 0 Ensures: (0 && ((((((((one_atan == \old(one_atan)) && (huge_atan == \old(huge_atan))) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (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 03:29:11,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fee916f-0946-4a58-8eb9-edec36b8aef4/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 Writing output log to file Ultimate.log Result: TRUE