./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje --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 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:31:01,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:31:01,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:31:01,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:31:01,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:31:01,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:31:01,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:31:01,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:31:01,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:31:01,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:31:01,266 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:31:01,266 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:31:01,267 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:31:01,269 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:31:01,270 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:31:01,270 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:31:01,271 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:31:01,271 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:31:01,271 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:31:01,272 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:31:01,275 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:31:01,276 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:31:01,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:31:01,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:31:01,278 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:31:01,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:31:01,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:31:01,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:31:01,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:31:01,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:31:01,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:31:01,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:31:01,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:31:01,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:31:01,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:31:01,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:31:01,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:31:01,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:31:01,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:01,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:31:01,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:31:01,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:31:01,284 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:31:01,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:31:01,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:31:01,285 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:31:01,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:31:01,286 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a [2024-11-09 04:31:01,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:31:01,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:31:01,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:31:01,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:31:01,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:31:01,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c Unable to find full path for "g++" [2024-11-09 04:31:03,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:31:04,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:31:04,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2024-11-09 04:31:04,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data/da45df594/4c1c24d79c234fbcbd98fc943ff1cb4e/FLAGd34787b74 [2024-11-09 04:31:04,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data/da45df594/4c1c24d79c234fbcbd98fc943ff1cb4e [2024-11-09 04:31:04,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:31:04,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:31:04,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:04,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:31:04,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:31:04,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:04" (1/1) ... [2024-11-09 04:31:04,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3803b522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:04, skipping insertion in model container [2024-11-09 04:31:04,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:04" (1/1) ... [2024-11-09 04:31:04,612 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:31:04,913 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_d1e3fb58-cb18-484e-bf12-8719c8367e93/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2024-11-09 04:31:04,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:04,936 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:31:04,999 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_d1e3fb58-cb18-484e-bf12-8719c8367e93/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2024-11-09 04:31:05,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:05,037 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:31:05,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05 WrapperNode [2024-11-09 04:31:05,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:05,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:05,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:31:05,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:31:05,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,103 INFO L138 Inliner]: procedures = 20, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2024-11-09 04:31:05,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:05,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:31:05,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:31:05,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:31:05,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:31:05,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:31:05,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:31:05,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:31:05,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:05,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:05,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:31:05,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:31:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:31:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:31:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 04:31:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:31:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 04:31:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:31:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 04:31:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:31:05,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:31:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:31:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 04:31:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:31:05,392 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:31:05,410 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:31:05,796 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-09 04:31:05,796 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:31:05,881 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:31:05,881 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-09 04:31:05,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:05 BoogieIcfgContainer [2024-11-09 04:31:05,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:31:05,885 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:31:05,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:31:05,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:31:05,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:31:04" (1/3) ... [2024-11-09 04:31:05,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69470f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:05, skipping insertion in model container [2024-11-09 04:31:05,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (2/3) ... [2024-11-09 04:31:05,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69470f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:05, skipping insertion in model container [2024-11-09 04:31:05,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:05" (3/3) ... [2024-11-09 04:31:05,894 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2024-11-09 04:31:05,918 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:31:05,919 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:31:05,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:31:05,997 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;@71ff446d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:31:05,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:31:06,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 04:31:06,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:06,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:06,016 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:06,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1689068467, now seen corresponding path program 1 times [2024-11-09 04:31:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:06,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060168546] [2024-11-09 04:31:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:06,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:06,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:06,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060168546] [2024-11-09 04:31:06,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060168546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:06,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:06,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:31:06,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381783552] [2024-11-09 04:31:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:06,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:31:06,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:06,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:31:06,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:31:06,530 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-09 04:31:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:06,676 INFO L93 Difference]: Finished difference Result 41 states and 61 transitions. [2024-11-09 04:31:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:31:06,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 04:31:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:06,691 INFO L225 Difference]: With dead ends: 41 [2024-11-09 04:31:06,691 INFO L226 Difference]: Without dead ends: 19 [2024-11-09 04:31:06,696 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 [2024-11-09 04:31:06,703 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:06,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:31:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-09 04:31:06,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-09 04:31:06,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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) [2024-11-09 04:31:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2024-11-09 04:31:06,751 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2024-11-09 04:31:06,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:06,752 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-11-09 04:31:06,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-09 04:31:06,753 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-09 04:31:06,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 04:31:06,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:06,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:06,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:31:06,756 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:06,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash -448836886, now seen corresponding path program 1 times [2024-11-09 04:31:06,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:06,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299768076] [2024-11-09 04:31:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:06,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:31:06,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:31:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:31:07,026 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:31:07,026 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:31:07,029 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:31:07,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:31:07,037 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 04:31:07,092 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:31:07,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:31:07 BoogieIcfgContainer [2024-11-09 04:31:07,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:31:07,100 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:31:07,100 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:31:07,101 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:31:07,101 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:05" (3/4) ... [2024-11-09 04:31:07,105 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:31:07,106 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:31:07,110 INFO L158 Benchmark]: Toolchain (without parser) took 2576.11ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 61.3MB in the beginning and 116.6MB in the end (delta: -55.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:31:07,111 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 97.3MB in the beginning and 97.2MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:31:07,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.62ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 61.0MB in the beginning and 109.5MB in the end (delta: -48.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-11-09 04:31:07,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.21ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 107.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:31:07,115 INFO L158 Benchmark]: Boogie Preprocessor took 40.44ms. Allocated memory is still 151.0MB. Free memory was 107.5MB in the beginning and 105.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:31:07,115 INFO L158 Benchmark]: RCFGBuilder took 736.68ms. Allocated memory is still 151.0MB. Free memory was 105.1MB in the beginning and 102.9MB in the end (delta: 2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 04:31:07,120 INFO L158 Benchmark]: TraceAbstraction took 1213.90ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 117.0MB in the end (delta: -14.9MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-11-09 04:31:07,121 INFO L158 Benchmark]: Witness Printer took 7.37ms. Allocated memory is still 151.0MB. Free memory was 117.0MB in the beginning and 116.6MB in the end (delta: 340.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:31:07,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 97.3MB in the beginning and 97.2MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.62ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 61.0MB in the beginning and 109.5MB in the end (delta: -48.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.21ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 107.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.44ms. Allocated memory is still 151.0MB. Free memory was 107.5MB in the beginning and 105.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 736.68ms. Allocated memory is still 151.0MB. Free memory was 105.1MB in the beginning and 102.9MB in the end (delta: 2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1213.90ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 117.0MB in the end (delta: -14.9MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 7.37ms. Allocated memory is still 151.0MB. Free memory was 117.0MB in the beginning and 116.6MB in the end (delta: 340.6kB). 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: 133]: 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 132, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] 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, }; [L54-L56] 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; [L129] float x = 1.0f / 0.0f; [L130] CALL, EXPR atan_float(x) [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-8388607, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000034] [L68] COND TRUE ix >= 0x50800000 [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000034] [L130] RET, EXPR atan_float(x) [L130] float res = atan_float(x); [L132] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L133] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, 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, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 5 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=21occurred 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, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:31:07,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje --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 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:31:10,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:31:10,266 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:31:10,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:31:10,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:31:10,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:31:10,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:31:10,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:31:10,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:31:10,322 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:31:10,322 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:31:10,323 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:31:10,323 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:31:10,324 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:31:10,324 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:31:10,326 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:31:10,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:31:10,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:31:10,328 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:31:10,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:31:10,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:31:10,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:31:10,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:31:10,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:31:10,334 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:31:10,335 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:31:10,335 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:31:10,335 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:31:10,336 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:31:10,336 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:31:10,336 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:31:10,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:31:10,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:31:10,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:31:10,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:31:10,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:10,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:31:10,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:31:10,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:31:10,341 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:31:10,342 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:31:10,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:31:10,344 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:31:10,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ec260cb84d051ded8af47768b754d2a933d99ce3d516511a560eef2f740c5a [2024-11-09 04:31:10,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:31:10,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:31:10,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:31:10,834 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:31:10,835 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:31:10,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c Unable to find full path for "g++" [2024-11-09 04:31:13,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:31:13,470 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:31:13,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2024-11-09 04:31:13,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data/4ba1459d7/f995da64899647c8854fbdbc19774463/FLAGc3ac57d74 [2024-11-09 04:31:13,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/data/4ba1459d7/f995da64899647c8854fbdbc19774463 [2024-11-09 04:31:13,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:31:13,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:31:13,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:13,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:31:13,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:31:13,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:13" (1/1) ... [2024-11-09 04:31:13,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc99840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:13, skipping insertion in model container [2024-11-09 04:31:13,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:13" (1/1) ... [2024-11-09 04:31:13,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:31:13,897 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_d1e3fb58-cb18-484e-bf12-8719c8367e93/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2024-11-09 04:31:13,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:13,956 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:31:14,037 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_d1e3fb58-cb18-484e-bf12-8719c8367e93/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2024-11-09 04:31:14,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:14,081 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:31:14,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14 WrapperNode [2024-11-09 04:31:14,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:14,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:14,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:31:14,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:31:14,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,177 INFO L138 Inliner]: procedures = 23, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 171 [2024-11-09 04:31:14,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:14,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:31:14,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:31:14,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:31:14,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:31:14,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:31:14,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:31:14,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:31:14,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (1/1) ... [2024-11-09 04:31:14,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:14,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:14,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:31:14,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:31:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:31:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 04:31:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:31:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:31:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 04:31:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 04:31:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 04:31:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:31:14,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:31:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 04:31:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 04:31:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:31:14,524 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:31:14,527 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:31:26,946 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-09 04:31:26,947 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:31:26,967 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:31:26,970 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-09 04:31:26,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:26 BoogieIcfgContainer [2024-11-09 04:31:26,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:31:26,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:31:26,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:31:26,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:31:26,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:31:13" (1/3) ... [2024-11-09 04:31:26,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5642a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:26, skipping insertion in model container [2024-11-09 04:31:26,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:14" (2/3) ... [2024-11-09 04:31:26,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5642a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:26, skipping insertion in model container [2024-11-09 04:31:26,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:26" (3/3) ... [2024-11-09 04:31:26,987 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2024-11-09 04:31:27,010 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:31:27,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:31:27,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:31:27,101 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;@4f54178e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:31:27,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:31:27,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2024-11-09 04:31:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:31:27,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:27,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:27,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:27,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:27,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1471447672, now seen corresponding path program 1 times [2024-11-09 04:31:27,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:27,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070777927] [2024-11-09 04:31:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:27,140 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 [2024-11-09 04:31:27,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:27,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:31:27,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:31:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:28,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:31:28,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:28,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:28,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:31:28,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070777927] [2024-11-09 04:31:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070777927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:28,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:28,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:31:28,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886701566] [2024-11-09 04:31:28,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:28,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:31:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:31:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:31:28,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:31:28,294 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 04:31:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:28,313 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2024-11-09 04:31:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:31:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 04:31:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:28,326 INFO L225 Difference]: With dead ends: 58 [2024-11-09 04:31:28,326 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 04:31:28,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:31:28,334 INFO L432 NwaCegarLoop]: 39 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, 39 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 [2024-11-09 04:31:28,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:31:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 04:31:28,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 04:31:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 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) [2024-11-09 04:31:28,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2024-11-09 04:31:28,375 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 9 [2024-11-09 04:31:28,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:28,376 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2024-11-09 04:31:28,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 04:31:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-09 04:31:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 04:31:28,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:28,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:28,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:31:28,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:31:28,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:28,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash 564831189, now seen corresponding path program 1 times [2024-11-09 04:31:28,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:28,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506826779] [2024-11-09 04:31:28,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:28,593 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 [2024-11-09 04:31:28,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:28,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:31:28,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:31:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:29,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:31:29,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:30,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:30,234 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:30,234 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:31:30,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506826779] [2024-11-09 04:31:30,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506826779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:30,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:30,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:30,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585481943] [2024-11-09 04:31:30,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:30,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:31:30,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:31:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:31:30,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:31:30,240 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:30,802 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2024-11-09 04:31:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:31:30,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 04:31:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:30,804 INFO L225 Difference]: With dead ends: 31 [2024-11-09 04:31:30,804 INFO L226 Difference]: Without dead ends: 12 [2024-11-09 04:31:30,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:30,807 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:30,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:31:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-09 04:31:30,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-09 04:31:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:30,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-11-09 04:31:30,812 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2024-11-09 04:31:30,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:30,812 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-11-09 04:31:30,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-09 04:31:30,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 04:31:30,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:30,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:30,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:31:31,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:31:31,018 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:31,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:31,019 INFO L85 PathProgramCache]: Analyzing trace with hash 329656532, now seen corresponding path program 1 times [2024-11-09 04:31:31,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:31,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246261874] [2024-11-09 04:31:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:31,021 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 [2024-11-09 04:31:31,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:31,024 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:31:31,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 04:31:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:32,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 04:31:32,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:32,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2024-11-09 04:31:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:33,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:33,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2024-11-09 04:31:34,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 45 [2024-11-09 04:31:36,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:36,360 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:36,361 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:31:36,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246261874] [2024-11-09 04:31:36,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246261874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:36,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:36,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:36,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693108646] [2024-11-09 04:31:36,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:36,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:31:36,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:31:36,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:31:36,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:31:36,364 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:37,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:31:39,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:31:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:41,781 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2024-11-09 04:31:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:31:41,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 04:31:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:41,783 INFO L225 Difference]: With dead ends: 12 [2024-11-09 04:31:41,784 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:31:41,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:31:41,786 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:41,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 04:31:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:31:41,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:31:41,789 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) [2024-11-09 04:31:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:31:41,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-09 04:31:41,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:41,790 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:31:41,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:31:41,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:31:41,794 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:31:41,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 04:31:41,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:31:42,001 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 04:31:42,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:31:42,326 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:31:42,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:31:42 BoogieIcfgContainer [2024-11-09 04:31:42,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:31:42,350 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:31:42,353 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:31:42,354 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:31:42,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:26" (3/4) ... [2024-11-09 04:31:42,357 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:31:42,371 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 04:31:42,371 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 04:31:42,372 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:31:42,372 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:31:42,500 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:31:42,501 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:31:42,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:31:42,502 INFO L158 Benchmark]: Toolchain (without parser) took 28988.36ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.3MB in the beginning and 46.9MB in the end (delta: 370.2kB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 04:31:42,503 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 46.8MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:31:42,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.56ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.1MB in the beginning and 62.0MB in the end (delta: -14.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-09 04:31:42,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.75ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 59.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:31:42,504 INFO L158 Benchmark]: Boogie Preprocessor took 81.06ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:31:42,504 INFO L158 Benchmark]: RCFGBuilder took 12707.57ms. Allocated memory is still 86.0MB. Free memory was 57.1MB in the beginning and 61.1MB in the end (delta: -4.0MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-09 04:31:42,505 INFO L158 Benchmark]: TraceAbstraction took 15376.32ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 52.6MB in the end (delta: 7.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-09 04:31:42,505 INFO L158 Benchmark]: Witness Printer took 150.91ms. Allocated memory is still 86.0MB. Free memory was 52.6MB in the beginning and 46.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 04:31:42,508 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 46.8MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.56ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.1MB in the beginning and 62.0MB in the end (delta: -14.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.75ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 59.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.06ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 12707.57ms. Allocated memory is still 86.0MB. Free memory was 57.1MB in the beginning and 61.1MB in the end (delta: -4.0MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15376.32ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 52.6MB in the end (delta: 7.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 150.91ms. Allocated memory is still 86.0MB. Free memory was 52.6MB in the beginning and 46.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 133]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 50 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 7 QuantifiedInterpolants, 785 SizeOfPredicates, 12 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 04:31:42,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e3fb58-cb18-484e-bf12-8719c8367e93/bin/utaipan-verify-YMUCfTKeje/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