./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:19:57,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:19:57,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:19:57,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:19:57,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:19:57,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:19:57,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:19:57,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:19:57,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:19:57,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:19:57,424 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:19:57,425 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:19:57,426 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:19:57,427 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:19:57,428 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:19:57,428 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:19:57,429 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:19:57,429 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:19:57,430 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:19:57,430 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:19:57,431 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:19:57,431 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:19:57,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:19:57,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:19:57,433 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:19:57,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:19:57,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:19:57,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:19:57,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:19:57,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:19:57,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:19:57,437 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:19:57,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:19:57,438 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:19:57,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:19:57,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:19:57,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:19:57,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:19:57,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:19:57,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:19:57,440 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:19:57,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:19:57,441 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:19:57,441 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:19:57,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:19:57,442 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_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2023-11-19 04:19:57,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:19:57,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:19:57,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:19:57,735 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:19:57,735 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:19:57,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-benchs/nan_float.c [2023-11-19 04:20:00,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:20:01,140 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:20:01,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/sv-benchmarks/c/float-benchs/nan_float.c [2023-11-19 04:20:01,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data/3c3567dbf/381fdcbd3e2f448384c674e682fea161/FLAGd637a41fd [2023-11-19 04:20:01,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data/3c3567dbf/381fdcbd3e2f448384c674e682fea161 [2023-11-19 04:20:01,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:20:01,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:20:01,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:01,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:20:01,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:20:01,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730385f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01, skipping insertion in model container [2023-11-19 04:20:01,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,204 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:20:01,355 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-19 04:20:01,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:01,379 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:20:01,391 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-19 04:20:01,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:01,407 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:20:01,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01 WrapperNode [2023-11-19 04:20:01,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:01,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:01,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:20:01,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:20:01,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,443 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2023-11-19 04:20:01,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:01,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:20:01,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:20:01,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:20:01,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:20:01,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:20:01,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:20:01,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:20:01,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:01,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:20:01,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:20:01,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:20:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:20:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:20:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:20:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:20:01,591 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:20:01,593 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:20:01,672 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:20:01,693 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:20:01,694 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:20:01,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:01 BoogieIcfgContainer [2023-11-19 04:20:01,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:20:01,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:20:01,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:20:01,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:20:01,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:20:01" (1/3) ... [2023-11-19 04:20:01,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bf04b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:01, skipping insertion in model container [2023-11-19 04:20:01,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (2/3) ... [2023-11-19 04:20:01,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bf04b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:01, skipping insertion in model container [2023-11-19 04:20:01,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:01" (3/3) ... [2023-11-19 04:20:01,708 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2023-11-19 04:20:01,730 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:20:01,730 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:20:01,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:20:01,784 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2874be1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:20:01,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:20:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:20:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:20:01,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:20:01,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 04:20:01,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:20:01,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:20:01,803 INFO L85 PathProgramCache]: Analyzing trace with hash 47251, now seen corresponding path program 1 times [2023-11-19 04:20:01,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:20:01,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407363379] [2023-11-19 04:20:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:20:01,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:20:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:01,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:20:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:01,973 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:20:01,975 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:20:01,976 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:20:01,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:20:01,984 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:20:01,989 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:20:02,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:20:02 BoogieIcfgContainer [2023-11-19 04:20:02,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:20:02,016 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:20:02,017 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:20:02,017 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:20:02,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:01" (3/4) ... [2023-11-19 04:20:02,024 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:20:02,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:20:02,028 INFO L158 Benchmark]: Toolchain (without parser) took 857.50ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 102.3MB in the end (delta: 36.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 04:20:02,028 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 140.5MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:02,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.18ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 128.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:20:02,031 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.86ms. Allocated memory is still 184.5MB. Free memory was 128.1MB in the beginning and 126.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:02,031 INFO L158 Benchmark]: Boogie Preprocessor took 15.52ms. Allocated memory is still 184.5MB. Free memory was 126.8MB in the beginning and 126.1MB in the end (delta: 731.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:20:02,038 INFO L158 Benchmark]: RCFGBuilder took 238.16ms. Allocated memory is still 184.5MB. Free memory was 126.1MB in the beginning and 116.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 04:20:02,039 INFO L158 Benchmark]: TraceAbstraction took 312.60ms. Allocated memory is still 184.5MB. Free memory was 115.6MB in the beginning and 103.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:20:02,041 INFO L158 Benchmark]: Witness Printer took 9.57ms. Allocated memory is still 184.5MB. Free memory was 102.3MB in the beginning and 102.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:02,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 140.5MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.18ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 128.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.86ms. Allocated memory is still 184.5MB. Free memory was 128.1MB in the beginning and 126.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.52ms. Allocated memory is still 184.5MB. Free memory was 126.8MB in the beginning and 126.1MB in the end (delta: 731.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 238.16ms. Allocated memory is still 184.5MB. Free memory was 126.1MB in the beginning and 116.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 312.60ms. Allocated memory is still 184.5MB. Free memory was 115.6MB in the beginning and 103.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 9.57ms. Allocated memory is still 184.5MB. Free memory was 102.3MB in the beginning and 102.3MB in the end (delta: 2.6kB). 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: 8]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:20:02,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:20:04,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:20:04,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:20:04,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:20:04,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:20:04,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:20:04,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:20:04,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:20:04,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:20:04,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:20:04,892 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:20:04,893 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:20:04,893 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:20:04,895 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:20:04,896 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:20:04,896 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:20:04,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:20:04,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:20:04,898 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:20:04,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:20:04,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:20:04,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:20:04,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:20:04,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:20:04,901 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:20:04,901 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:20:04,902 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:20:04,902 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:20:04,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:20:04,903 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:20:04,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:20:04,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:20:04,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:20:04,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:04,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:20:04,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:20:04,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:20:04,907 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:20:04,907 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:20:04,908 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:20:04,909 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:20:04,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:20:04,909 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2023-11-19 04:20:05,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:20:05,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:20:05,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:20:05,391 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:20:05,392 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:20:05,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-benchs/nan_float.c [2023-11-19 04:20:08,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:20:08,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:20:08,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/sv-benchmarks/c/float-benchs/nan_float.c [2023-11-19 04:20:08,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data/2ce24c6dc/dde26438da3f44d79b2fa76a96f75399/FLAG3def64a84 [2023-11-19 04:20:08,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/data/2ce24c6dc/dde26438da3f44d79b2fa76a96f75399 [2023-11-19 04:20:08,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:20:08,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:20:08,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:08,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:20:08,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:20:08,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:08" (1/1) ... [2023-11-19 04:20:08,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4016741f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:08, skipping insertion in model container [2023-11-19 04:20:08,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:08" (1/1) ... [2023-11-19 04:20:08,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:20:09,089 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-19 04:20:09,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:09,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:20:09,136 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-19 04:20:09,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:09,157 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:20:09,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09 WrapperNode [2023-11-19 04:20:09,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:09,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:09,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:20:09,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:20:09,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,202 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2023-11-19 04:20:09,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:09,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:20:09,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:20:09,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:20:09,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:20:09,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:20:09,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:20:09,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:20:09,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (1/1) ... [2023-11-19 04:20:09,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:09,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:20:09,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:20:09,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:20:09,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:20:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:20:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:20:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:20:09,417 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:20:09,421 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:20:09,555 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:20:09,562 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:20:09,562 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:20:09,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:09 BoogieIcfgContainer [2023-11-19 04:20:09,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:20:09,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:20:09,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:20:09,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:20:09,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:20:08" (1/3) ... [2023-11-19 04:20:09,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45186a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:09, skipping insertion in model container [2023-11-19 04:20:09,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:09" (2/3) ... [2023-11-19 04:20:09,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45186a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:09, skipping insertion in model container [2023-11-19 04:20:09,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:09" (3/3) ... [2023-11-19 04:20:09,577 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2023-11-19 04:20:09,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:20:09,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:20:09,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:20:09,678 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56905927, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:20:09,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:20:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) [2023-11-19 04:20:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:20:09,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:20:09,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:20:09,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:20:09,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:20:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2023-11-19 04:20:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:20:09,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225161562] [2023-11-19 04:20:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:20:09,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:20:09,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:20:09,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:20:09,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:20:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:09,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:20:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:09,872 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-19 04:20:09,874 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:20:09,875 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:20:09,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:20:10,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:20:10,084 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:20:10,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:20:10,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:20:10 BoogieIcfgContainer [2023-11-19 04:20:10,118 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:20:10,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:20:10,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:20:10,122 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:20:10,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:09" (3/4) ... [2023-11-19 04:20:10,125 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:20:10,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:20:10,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:20:10,176 INFO L158 Benchmark]: Toolchain (without parser) took 1287.42ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 55.3MB in the end (delta: 8.5MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-11-19 04:20:10,177 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:10,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.71ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 53.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:20:10,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.78ms. Allocated memory is still 86.0MB. Free memory was 53.1MB in the beginning and 51.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:20:10,180 INFO L158 Benchmark]: Boogie Preprocessor took 38.79ms. Allocated memory is still 86.0MB. Free memory was 51.5MB in the beginning and 50.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:10,184 INFO L158 Benchmark]: RCFGBuilder took 321.41ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 41.7MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 04:20:10,184 INFO L158 Benchmark]: TraceAbstraction took 549.35ms. Allocated memory is still 86.0MB. Free memory was 41.0MB in the beginning and 57.1MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:10,184 INFO L158 Benchmark]: Witness Printer took 53.38ms. Allocated memory is still 86.0MB. Free memory was 57.1MB in the beginning and 55.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:20:10,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.71ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 53.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.78ms. Allocated memory is still 86.0MB. Free memory was 53.1MB in the beginning and 51.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.79ms. Allocated memory is still 86.0MB. Free memory was 51.5MB in the beginning and 50.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 321.41ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 41.7MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 549.35ms. Allocated memory is still 86.0MB. Free memory was 41.0MB in the beginning and 57.1MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.38ms. Allocated memory is still 86.0MB. Free memory was 57.1MB in the beginning and 55.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2023-11-19 04:20:10,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91e83a7-5af9-4ca5-870b-97bc28a1643d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE